Question

Which statement describes the first step to solve the equation by completing the square?

4x^2 +16x =20

Multiply both sides of the equation by 1/4

Add 64 to each side of the equation

Add 8 to each side of the equation

Multiply both sides of the equation by 1/8

Answer 1

Multiply both sides of the equation by 1/4

Explanation:

First step: Multiply both sides of the equation by 1/4

You will have:

x^2 +4x = 5

Then add 4 to both sides

x^2 +4x + 4 = 5 + 4

(x + 2)^2 = 9