Find the Equation Given the Roots x=-4 , x=6

$x = - 4$ , $x = 6$

Step 1

Since the roots of an equation are the points where the solution is $0$ , set each root as a factor of the equation that equals $0$ .

$(x - (- 4)) (x - 6) = 0$

Step 2

Simplify.

Expand $(x + 4) (x - 6)$ using the FOIL Method.

Apply the distributive property.

$x (x - 6) + 4 (x - 6) = 0$

Apply the distributive property.

$x \cdot x + x \cdot - 6 + 4 (x - 6) = 0$

Apply the distributive property.

$x \cdot x + x \cdot - 6 + 4 x + 4 \cdot - 6 = 0$

Simplify and combine like terms.

Simplify each term.

Multiply $x$ by $x$ .

$x^{2} + x \cdot - 6 + 4 x + 4 \cdot - 6 = 0$

Move $- 6$ to the left of $x$ .

$x^{2} - 6 \cdot x + 4 x + 4 \cdot - 6 = 0$

Multiply $4$ by $- 6$ .

$x^{2} - 6 x + 4 x - 24 = 0$

Add $- 6 x$ and $4 x$ .

$x^{2} - 2 x - 24 = 0$