simplify (x + 2) squared over x + 2
(x+2)^2 over x+2x^2+4 \x+2x+2
\(\frac{(x+2)^{2} }{x+2} = \frac{x^{2} +4x+4 }{x+2} = \frac{(x+2)(x+2)}{x+2} = x+2\)
