Question

Solve for x using the Quadratic Formula: x2 + 4x + 4 = 0

x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a

x = −2
x = −1
x = 0
x = 1

Answer 1

x = -2

Explanation:

x2 + 4x + 4 can be expressed as (x + 2) × (x + 2) which is square of (x + 2)

if x + 2 = 0 then x must be - 2