Question

THE QUESTION IS BELOW, I REALLY NEED THIS!

Answer 1

Method 1

Answer 2

to say that AsianDuck is correct

Answer 3

Method 1

Answer 4

Just to say*

Answer 5

...because exponents are not distributive

Answer 6

that is the important point here

Answer 7

couldn't put it in better words myself, really i couldn't :D

Answer 8

Method one is the correct method in finding the product of (x-3)^2. Since u^2=u*u, then (x-3)^2=(x-3)(x-3) not x^2-3^2