Question

Упростите выражения.√16n+√25n-√9n
√3a-2√12a+3√75a

Answer 1

$sqrt{16n}+sqrt{25n}-sqrt{9n}=4sqrt{n}+5sqrt{n}-3sqrt{n}=6sqrt{n};\sqrt{3a}-2sqrt{12a}+3sqrt{75a}=sqrt{3a}-4sqrt{3a}+15sqrt{3a}=12sqrt{3a}$