Question

simplify the square root of x squared + 8x + 16

Answer 1

You mean like this?\[\sqrt{x^2+8x+16}\]

Answer 2

\(x^2+8x+16\) can be written in the form of a perfect square by using these identities:

(a+b)^2 = a^2 + 2ab + b^2
(a-b)^2 = a^2 - 2ab + b^2

Try to factorize your expression, and you'll get the square root of it.

Getting this? :)

Answer 3

@halorazer yeah