Question

mulyiply and simplify
look at attachment

Answer 1

(a+b)(a+b) = a^2 + ab + ab + (b)(b)

Answer 2

do you know that

\[\sqrt{3} = 3^{\frac{1}2}\]

Answer 3

expand the problem and I will show you how to simplify it

Answer 4

just use

(a+b)(a+b) = a^2 + ab + ab + (b)(b)