Question

Cum se calculeaza :

a) $3 \sqrt{2} +3( \sqrt{2} + \sqrt{3}$
b) $4 \sqrt{3} +1( \sqrt{3} -1$
c)$1 ( 3 \sqrt{5} - 2 \sqrt{6}$

Answer 1

$a)\ 3 \sqrt{2}+3( \sqrt{2}+ \sqrt{3})= \\ 3 \sqrt{2}+3 \sqrt{2}+3 \sqrt{3} \ \ \ am \ inmultit \ cu \ 3 \ fiecare \ termen \ din \ paranteza \\ \boxed{6\sqrt{2}+3\sqrt{2}} \\ \\ b)4 \sqrt{3}+1( \sqrt{3}-1 )= \\ 4 \sqrt3+ \sqrt{3}-1 } \\ \boxed{5 \sqrt{3}-1} \\ \\ c)1(3 \sqrt{5}-2 \sqrt{6}) \\ \boxed{3 \sqrt{5}-2 \sqrt{6}}$