Simplify (x+y)(x^2-xy+y^2)

$(x + y) (x^{2} - x y + y^{2})$

Step 1

Expand $(x + y) (x^{2} - x y + y^{2})$ by multiplying each term in the first expression by each term in the second expression.

$x \cdot x^{2} + x (- x y) + x y^{2} + y x^{2} + y (- x y) + y \cdot y^{2}$

Step 2

Simplify terms.

Simplify each term.

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

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

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

$x^{1} x^{2} + x (- x y) + x y^{2} + y x^{2} + y (- x y) + y \cdot y^{2}$

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

$x^{1 + 2} + x (- x y) + x y^{2} + y x^{2} + y (- x y) + y \cdot y^{2}$

Add $1$ and $2$ .

$x^{3} + x (- x y) + x y^{2} + y x^{2} + y (- x y) + y \cdot y^{2}$

Rewrite using the commutative property of multiplication.

$x^{3} - x (x y) + x y^{2} + y x^{2} + y (- x y) + y \cdot y^{2}$

Multiply $x$ by $x$ by adding the exponents.

Move $x$ .

$x^{3} - (x \cdot x) y + x y^{2} + y x^{2} + y (- x y) + y \cdot y^{2}$

Multiply $x$ by $x$ .

$x^{3} - x^{2} y + x y^{2} + y x^{2} + y (- x y) + y \cdot y^{2}$

Rewrite using the commutative property of multiplication.

$x^{3} - x^{2} y + x y^{2} + y x^{2} - y (x y) + y \cdot y^{2}$

Multiply $y$ by $y$ by adding the exponents.

Move $y$ .

$x^{3} - x^{2} y + x y^{2} + y x^{2} - (y \cdot y) x + y \cdot y^{2}$

Multiply $y$ by $y$ .

$x^{3} - x^{2} y + x y^{2} + y x^{2} - y^{2} x + y \cdot y^{2}$

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

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

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

$x^{3} - x^{2} y + x y^{2} + y x^{2} - y^{2} x + y^{1} y^{2}$

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

$x^{3} - x^{2} y + x y^{2} + y x^{2} - y^{2} x + y^{1 + 2}$

Add $1$ and $2$ .

$x^{3} - x^{2} y + x y^{2} + y x^{2} - y^{2} x + y^{3}$

Combine the opposite terms in $x^{3} - x^{2} y + x y^{2} + y x^{2} - y^{2} x + y^{3}$ .

Reorder the factors in the terms $- x^{2} y$ and $y x^{2}$ .

$x^{3} - x^{2} y + x y^{2} + x^{2} y - y^{2} x + y^{3}$

Add $- x^{2} y$ and $x^{2} y$ .

$x^{3} + x y^{2} + 0 - y^{2} x + y^{3}$

Add $x^{3} + x y^{2}$ and $0$ .

$x^{3} + x y^{2} - y^{2} x + y^{3}$

Reorder the factors in the terms $x y^{2}$ and $- y^{2} x$ .

$x^{3} + y^{2} x - y^{2} x + y^{3}$

Subtract $y^{2} x$ from $y^{2} x$ .

$x^{3} + 0 + y^{3}$

Add $x^{3}$ and $0$ .

$x^{3} + y^{3}$

Simplify (x+y)(x^2-xy+y^2)

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