Question

3 Calcule o valor das expressões.
a) (3-√2)(1+√3)
b) (4√8-2√18): ensina da raiz tem um3√2
c)(3√12+2√48):√3

Answer 1

Resposta:

$a)\left(3-\sqrt{2}\right)\left(1+\sqrt{3}\right)=3+3\sqrt{3}-\sqrt{2}-\sqrt{6}$

$b)4\sqrt{8}-2\sqrt{1}8=8\sqrt{2}-16$

$c)\frac{\left(3\sqrt{1}2+2\sqrt{4}8\right)}{\sqrt{3}}=\frac{38}{\sqrt{3}}=\frac{38}{\sqrt{3}}=\frac{38\sqrt{3}}{3}$