Question

I need help with both questions.

Answer 1

15 and 270

Explanation:

Using the rule of radicals

`√(a)` ×
`√(a)` = a

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

(a)

Given

(
`√(5)` )² × (
`√(3)` )²

= 5 × 3

= 15

(b)

Given

(
`\sqrt[3]{9}` )³ × (
`√(30)` )²

= 9 × 30

= 270