Question

Use completing the square to solve the equation x2+16x=−44 . First determine the number you must add to both sides of the equation.

Answer 1

Answer: b

Explanation:

Yes

Answer 2

x = -8 ± √(56)

Explanation:

x2 +16x = -8

Add 64 to both sides: x2 + 16x + 64 = -8 + 64

Factor and simplify: (x + 8)2 = 56

Use the square root method: x + 8 = ± √(56)

Subtract 8 from both sides: x = -8 ± √(56)