Question

Rewrite the equation by completing the square 4x^2 +28x +49=0

Answer 1

Answer: −3.5

Explanation:

Standard form:

4x2 + 28x + 49 = 0

Factorization:

(2x + 7)2 = 0

Answer equation: 2x + 7 = 0 ⇒ x1 = x2 = −7 over 2 = −3.5