Question

6√7+2(√5-3√7) rog calcul.

Answer 1

$6\sqrt{7} + 2( \sqrt{5} - 3 \sqrt{7}) = \\ \\ 6 \sqrt{7} + 2 \sqrt{5} - 6 \sqrt{7} = \\ \\ (6 \sqrt{7} - 6 \sqrt{7}) + 2 \sqrt{5} = \\ \\ 2 \sqrt{5}$

Answer 2

6√7+2(√5-3√7)=

6√7+2√5-6√7=

6√7-6√7+2√5=2√5