okay, so when you square a (presumably) root, there is one thing you gotta keep in mind.
do not square the numbers individually. aka
(x+6)^2 does not equal x^2 + 36
instead you would do this
(x+6)(x+6)
and use FOIL (first, outer, inner, last) to get your final product.
X x X = x^2
X x 6 = 6x
6 x X = 6x
6 x 6 = 36
so your answer is: X^2 + 12x + 36
