Find the Degree, Leading Term, and Leading Coefficient f(x)=-2x^2(2x-1)^3(4x+3)

$f (x) = - 2 x^{2} {(2 x - 1)}^{3} (4 x + 3)$

Step 1

Simplify the polynomial, then reorder it left to right starting with the highest degree term.

Use the Binomial Theorem.

$f (x) = - 2 x^{2} ({(2 x)}^{3} + 3 {(2 x)}^{2} \cdot - 1 + 3 (2 x) {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Simplify terms.

Simplify each term.

Apply the product rule to $2 x$ .

$f (x) = - 2 x^{2} (2^{3} x^{3} + 3 {(2 x)}^{2} \cdot - 1 + 3 (2 x) {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Raise $2$ to the power of $3$ .

$f (x) = - 2 x^{2} (8 x^{3} + 3 {(2 x)}^{2} \cdot - 1 + 3 (2 x) {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Apply the product rule to $2 x$ .

$f (x) = - 2 x^{2} (8 x^{3} + 3 (2^{2} x^{2}) \cdot - 1 + 3 (2 x) {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Raise $2$ to the power of $2$ .

$f (x) = - 2 x^{2} (8 x^{3} + 3 (4 x^{2}) \cdot - 1 + 3 (2 x) {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Multiply $4$ by $3$ .

$f (x) = - 2 x^{2} (8 x^{3} + 12 x^{2} \cdot - 1 + 3 (2 x) {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Multiply $- 1$ by $12$ .

$f (x) = - 2 x^{2} (8 x^{3} - 12 x^{2} + 3 (2 x) {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Multiply $2$ by $3$ .

$f (x) = - 2 x^{2} (8 x^{3} - 12 x^{2} + 6 x {(- 1)}^{2} + {(- 1)}^{3}) (4 x + 3)$

Raise $- 1$ to the power of $2$ .

$f (x) = - 2 x^{2} (8 x^{3} - 12 x^{2} + 6 x \cdot 1 + {(- 1)}^{3}) (4 x + 3)$

Multiply $6$ by $1$ .

$f (x) = - 2 x^{2} (8 x^{3} - 12 x^{2} + 6 x + {(- 1)}^{3}) (4 x + 3)$

Raise $- 1$ to the power of $3$ .

$f (x) = - 2 x^{2} (8 x^{3} - 12 x^{2} + 6 x - 1) (4 x + 3)$

Apply the distributive property.

$f (x) = (- 2 x^{2} (8 x^{3}) - 2 x^{2} (- 12 x^{2}) - 2 x^{2} (6 x) - 2 x^{2} \cdot - 1) (4 x + 3)$

Simplify.

Rewrite using the commutative property of multiplication.

$f (x) = (- 2 \cdot (8 x^{2} x^{3}) - 2 x^{2} (- 12 x^{2}) - 2 x^{2} (6 x) - 2 x^{2} \cdot - 1) (4 x + 3)$

Rewrite using the commutative property of multiplication.

$f (x) = (- 2 \cdot (8 x^{2} x^{3}) - 2 \cdot (- 12 x^{2} x^{2}) - 2 x^{2} (6 x) - 2 x^{2} \cdot - 1) (4 x + 3)$

Rewrite using the commutative property of multiplication.

$f (x) = (- 2 \cdot (8 x^{2} x^{3}) - 2 \cdot (- 12 x^{2} x^{2}) - 2 \cdot (6 x^{2} x) - 2 x^{2} \cdot - 1) (4 x + 3)$

Multiply $- 1$ by $- 2$ .

$f (x) = (- 2 \cdot (8 x^{2} x^{3}) - 2 \cdot (- 12 x^{2} x^{2}) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Simplify each term.

Multiply $x^{2}$ by $x^{3}$ by adding the exponents.

Move $x^{3}$ .

$f (x) = (- 2 \cdot (8 (x^{3} x^{2})) - 2 \cdot (- 12 x^{2} x^{2}) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (x) = (- 2 \cdot (8 x^{3 + 2}) - 2 \cdot (- 12 x^{2} x^{2}) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Add $3$ and $2$ .

$f (x) = (- 2 \cdot (8 x^{5}) - 2 \cdot (- 12 x^{2} x^{2}) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Multiply $- 2$ by $8$ .

$f (x) = (- 16 x^{5} - 2 \cdot (- 12 x^{2} x^{2}) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Multiply $x^{2}$ by $x^{2}$ by adding the exponents.

Move $x^{2}$ .

$f (x) = (- 16 x^{5} - 2 \cdot (- 12 (x^{2} x^{2})) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (x) = (- 16 x^{5} - 2 \cdot (- 12 x^{2 + 2}) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Add $2$ and $2$ .

$f (x) = (- 16 x^{5} - 2 \cdot (- 12 x^{4}) - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Multiply $- 2$ by $- 12$ .

$f (x) = (- 16 x^{5} + 24 x^{4} - 2 \cdot (6 x^{2} x) + 2 x^{2}) (4 x + 3)$

Multiply $x^{2}$ by $x$ by adding the exponents.

Move $x$ .

$f (x) = (- 16 x^{5} + 24 x^{4} - 2 \cdot (6 (x \cdot x^{2})) + 2 x^{2}) (4 x + 3)$

Multiply $x$ by $x^{2}$ .

Raise $x$ to the power of $1$ .

$f (x) = (- 16 x^{5} + 24 x^{4} - 2 \cdot (6 (x \cdot x^{2})) + 2 x^{2}) (4 x + 3)$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (x) = (- 16 x^{5} + 24 x^{4} - 2 \cdot (6 x^{1 + 2}) + 2 x^{2}) (4 x + 3)$

Add $1$ and $2$ .

$f (x) = (- 16 x^{5} + 24 x^{4} - 2 \cdot (6 x^{3}) + 2 x^{2}) (4 x + 3)$

Multiply $- 2$ by $6$ .

$f (x) = (- 16 x^{5} + 24 x^{4} - 12 x^{3} + 2 x^{2}) (4 x + 3)$

Expand $(- 16 x^{5} + 24 x^{4} - 12 x^{3} + 2 x^{2}) (4 x + 3)$ by multiplying each term in the first expression by each term in the second expression.

$f (x) = - 16 x^{5} (4 x) - 16 x^{5} \cdot 3 + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Simplify terms.

Simplify each term.

Rewrite using the commutative property of multiplication.

$f (x) = - 16 \cdot (4 x^{5} x) - 16 x^{5} \cdot 3 + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $x^{5}$ by $x$ by adding the exponents.

Move $x$ .

$f (x) = - 16 \cdot (4 (x \cdot x^{5})) - 16 x^{5} \cdot 3 + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $x$ by $x^{5}$ .

Raise $x$ to the power of $1$ .

$f (x) = - 16 \cdot (4 (x \cdot x^{5})) - 16 x^{5} \cdot 3 + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (x) = - 16 \cdot (4 x^{1 + 5}) - 16 x^{5} \cdot 3 + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Add $1$ and $5$ .

$f (x) = - 16 \cdot (4 x^{6}) - 16 x^{5} \cdot 3 + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $- 16$ by $4$ .

$f (x) = - 64 x^{6} - 16 x^{5} \cdot 3 + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $3$ by $- 16$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 24 x^{4} (4 x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Rewrite using the commutative property of multiplication.

$f (x) = - 64 x^{6} - 48 x^{5} + 24 \cdot (4 x^{4} x) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $x^{4}$ by $x$ by adding the exponents.

Move $x$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 24 \cdot (4 (x \cdot x^{4})) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $x$ by $x^{4}$ .

Raise $x$ to the power of $1$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 24 \cdot (4 (x \cdot x^{4})) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (x) = - 64 x^{6} - 48 x^{5} + 24 \cdot (4 x^{1 + 4}) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Add $1$ and $4$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 24 \cdot (4 x^{5}) + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $24$ by $4$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 24 x^{4} \cdot 3 - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $3$ by $24$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 12 x^{3} (4 x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Rewrite using the commutative property of multiplication.

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 12 \cdot (4 x^{3} x) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $x^{3}$ by $x$ by adding the exponents.

Move $x$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 12 \cdot (4 (x \cdot x^{3})) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $x$ by $x^{3}$ .

Raise $x$ to the power of $1$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 12 \cdot (4 (x \cdot x^{3})) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 12 \cdot (4 x^{1 + 3}) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Add $1$ and $3$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 12 \cdot (4 x^{4}) - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $- 12$ by $4$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 12 x^{3} \cdot 3 + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Multiply $3$ by $- 12$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 2 x^{2} (4 x) + 2 x^{2} \cdot 3$

Rewrite using the commutative property of multiplication.

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 2 \cdot (4 x^{2} x) + 2 x^{2} \cdot 3$

Multiply $x^{2}$ by $x$ by adding the exponents.

Move $x$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 2 \cdot (4 (x \cdot x^{2})) + 2 x^{2} \cdot 3$

Multiply $x$ by $x^{2}$ .

Raise $x$ to the power of $1$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 2 \cdot (4 (x \cdot x^{2})) + 2 x^{2} \cdot 3$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 2 \cdot (4 x^{1 + 2}) + 2 x^{2} \cdot 3$

Add $1$ and $2$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 2 \cdot (4 x^{3}) + 2 x^{2} \cdot 3$

Multiply $2$ by $4$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 8 x^{3} + 2 x^{2} \cdot 3$

Multiply $3$ by $2$ .

$f (x) = - 64 x^{6} - 48 x^{5} + 96 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 8 x^{3} + 6 x^{2}$

Simplify by adding terms.

Add $- 48 x^{5}$ and $96 x^{5}$ .

$f (x) = - 64 x^{6} + 48 x^{5} + 72 x^{4} - 48 x^{4} - 36 x^{3} + 8 x^{3} + 6 x^{2}$

Subtract $48 x^{4}$ from $72 x^{4}$ .

$f (x) = - 64 x^{6} + 48 x^{5} + 24 x^{4} - 36 x^{3} + 8 x^{3} + 6 x^{2}$

Add $- 36 x^{3}$ and $8 x^{3}$ .

$f (x) = - 64 x^{6} + 48 x^{5} + 24 x^{4} - 28 x^{3} + 6 x^{2}$

Step 2

The degree of a polynomial is the highest degree of its terms.

Identify the exponents on the variables in each term, and add them together to find the degree of each term.

$- 64 x^{6} \to 6$

$48 x^{5} \to 5$

$24 x^{4} \to 4$

$- 28 x^{3} \to 3$

$6 x^{2} \to 2$

The largest exponent is the degree of the polynomial.

$6$

Step 3

The leading term in a polynomial is the term with the highest degree.

$- 64 x^{6}$

Step 4

The leading coefficient of a polynomial is the coefficient of the leading term.

The leading term in a polynomial is the term with the highest degree.

$- 64 x^{6}$

The leading coefficient in a polynomial is the coefficient of the leading term.

$- 64$

Step 5

List the results.

Polynomial Degree: $6$

Leading Term: $- 64 x^{6}$

Leading Coefficient: $- 64$

Find the Degree, Leading Term, and Leading Coefficient f(x)=-2x^2(2x-1)^3(4x+3)

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