Question

Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(√12+2√8)(√12-2√8)

Answer 1

yes we can do this

Answer 2

it is like
\[(a+b)(a-b)=a^2-b^2\] with
\[a=\sqrt{12},b=2\sqrt{8}\]

Answer 3

you get
\[(\sqrt{12})^2-(2\sqrt{8})^2=12-4\times 8=12-32=-20\]\]

Answer 4

That makes sense. Thanks a lot.