Complete the square to solve the equation below check all that apply x^2+8x-2=18

x^2+8x-2=18

x^2+8x-2-18= 18-18

x^2+8x-20= 0

(x-2)(x+10)=0

x-2= 0 , x+10=0

x-2+2= 0+2, x+10-10= 0-10

x=2 , x=-10

Answers are x= 2 -B, x=-10 -A.

Option A and B

Step-by-step explanation:

Given : Quadratic equation

To find : Complete the square to solve the equation below check all that apply ?

Solution :

Re-write,

Applying quadratic formula,

Here, a=1 , b=8, c=-20

The solution of the equation is x=2,-10.

Therefore, Option A,B satisfy the equation.

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step-by-step explanation: