Question

How do you factor `a^2+16a+64` using the perfect squares formula?

Answer 1

`a=-8`

Explanation:

`a^2+16a+64=0`
or
`a^2+16a+8^2=0`
or
`a^2+2(a)(8)+8^2=0`
or
`(a+8)^2=0`
or
`a+8=0`
or
`a=-8`