Question

Solve for x? x^2 + 8x + 16 = 0

Answer 1

`x=-4`

Explanation:

You can rewrite
`x^2+8x+16=0` like:

`(x+4)(x+4)=0`

so: `x+4=0` or `x+4=0`

So there is only one answer and that is:

`x=-4`

This is also the vertex at the bottom of the parabola.