Question

Solve the quadratic function by completing the square. What are the missing pieces in the steps?

-32 = 2(x2 + 10x)
-32 +
= 2(2x2 + 10x + 25)
18 = 2(x + 5)2
9 = (x + 5)2
= x + 5
x=-2 or x =

Answer 1

Explanation:

The solutions are x=\frac{1+\sqrt{7}}{2} and x=\frac{1-\sqrt{7}}{2}