Question

Solve for x. Simplify completely.
x^2+4x+4=8

Answer 1

A. x=-6 or x=2 is the answer

Answer 2

The first thing we need to do is get ZERO on the opposite side of the quadratic expression. We can do this by subtracting 8 from both sides. You will get this:

x^2 + 4x - 4 = 0

Now that we have a quadratic expression equaling ZERO, we need to use the quadratic formula: x=
`(-b + or - √(b^2 - 4ac) )/(2a)`

a= coefficient of x^2
b= coefficient of x
c= last term


`(-4 + or - √(16 +16) )/(2) = (-4 + or - 4 √(2) )/(2) = -2 +or- 2 √(2)`

The final answer would be x =
`x = (-2+ √(2)) or (-2 - √(2)`