Question

Desfaceti parantezele:$( \sqrt{3} +7)( \sqrt{3} -7)$

Answer 1

(√3+7)(√3-7)=√(√3)²-7²=√3-49= -√46

Answer 2

$(\sqrt{3}+7)(\sqrt{3}-7) = (\sqrt{3})^2 -7^2 = \\\\ =3 -49 \longrightarrow \boxed{-46}$