Question

raiz quadrada de 6 vezes raiz quadrada de 15 mais raiz quadrada de 60

Answer 1

$(\sqrt{6}\cdot \sqrt{15})+ \sqrt{60}=\\\\ \sqrt{6\cdot15}+ \sqrt{60}=\\\\ \sqrt{60} + \sqrt{60} =\\\\ (1+1) \sqrt{60} =\\\\2 \sqrt{60} =\\\\ \sqrt{2^2\cdot60}= \\\\ \sqrt{4\cdot60}=\\\\ \sqrt{240}=\\\\ \sqrt{2^2\cdot2^2\cdot3\cdot5} =\\\\2\cdot2 \sqrt{3\cdot5} =\\\\\\\boxed{\boxed{4 \sqrt{15}}}$