Question

Sergey is solving 5x2 + 20x – 7 = 0. Which steps could he use to solve the quadratic equation by completing the square? Select three options. 5(x2 + 4x + 4) = –7 + 20 x + 2 = Plus or minus StartRoot StartFraction 27 Over 5 EndFraction EndRoot 5(x2 + 4x) = 7 5(x2 + 4x + 4) = 7 + 20 5(x2 + 4x) = –7

Answer 1

x = -2 ± 3√5

Explanation:

This shall be solved by both methods.

I used the quadratic formula on this since it's proven to be the easiest.

My steps are provided below.

Your proposed question choices are unclear meaning there's going to be an issue solving your problem to the greatest extent. I believe that if you view my process you could potentially solve your problem.