Question

Solve x^2 + 10x + 7 = 0 by completing the square.

Which equation is used in the process?

a. (x+ 10)^2= 93
b. (x+ 5)^2= 32
c. (x+ 5)^2= 18

Answer 1

@bcheyennehaynes if we want to solve any quadratic equation by completing the square, we need to create the term (x+a)^2, here we have
\[x^2+10x+7=0\]
Can you notice the coefficient of x?

Answer 2

(x+5)^2-18 = 0
(x+5)^2 = 18

Answer 3

c