Question

please help with 8th grade math!
questions posted below!
show your work if you can(:

Answer 1

\[(2x-4)^2=(2x-4)(2x-4)\] is a start

Answer 2

then
\[(2x-4)(2x-4)=2x\times 2x-4\times 2x-4\times 2x+4\times 4\]
\[=4x^2-16x+16\]

Answer 3

is that answer in simplest form? @satellite73