(x-6)(x-6)
Because this equals x² - 6x - 6x +36 which equals x²-12x+36
21/2 is the answer I think!
Answer is the second one!
Answer:
b. 
Step-by-step explanation:
Here we are given
and are asked to simplify it. We are going to apply the law of exponents which says that

Hence applying this rule in our problem we get, where a=y and n=3

Hence our C) Option is correct