Question

(3√5)²
-3√(-5)²
(-3√5)в 4 степени
√729-√529
√1/9*√0,36

Answer 1

$(3 sqrt{5})^{2} = 45$
$-3 sqrt{-5} ^{2} = -15$
$(-3 sqrt{5})^{4} = 2025$
$sqrt{729} - sqrt{529} = 4$
$sqrt{1/9} * sqrt{0.36} = 0.2$