Question

Упростить выражение,4.75 и 4.77 )))))))))))))))

Answer 1

4.75
$sqrt{9+ sqrt{32} } = sqrt{9+4 sqrt{2} } = sqrt{(2 sqrt{2} +1)^2} =2 sqrt{2} +1$
4.77
$sqrt{27+2 sqrt{50} } = sqrt{27+10 sqrt{2} } = sqrt{(5+ sqrt{2})^2 } =5+ sqrt{2}$