You can put this solution on YOUR website! I will do 10 only.
10) (x-6)²
(x-6)² can be written as two factors:
(x - 6) (x - 6)
x times x = x^2
x times -6 = -6x
-6 times x = -6x
-6 times -6 = 36
We now have:
x^2 - 6x - 6x + 36
Combine like terms to get the final answer:
x^2 - 12x + 36