Question

I need help with both questions.

Answer 1

Answer:

15 and 270

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{a}$ = a

$\sqrt[3]{a}$ × $\sqrt[3]{a}$ × $\sqrt[3]{a}$ = a

(a)

Given

($\sqrt{5}$ )² × ($\sqrt{3}$ )²

= 5 × 3

= 15

(b)

Given

($\sqrt[3]{9}$ )³ × ($\sqrt{30}$ )²

= 9 × 30

= 270