Answer:
well you didn't show problem 11 but here is a pretty photo of Port orford Oregon
The answer is true because the X (to the right) values does not repeat itself
So, u would start by expanding the bracket and ignoring the 2 at the moment.
(x+9)(x+9)= x^2-18x+81(using the foil method!
Then u would put 2 at the front to get:
2(x^2+18x+81)
= 2x^2+36x+162