Simplify these questions

Question

Answer 1

14)

Your first step is to simplify the root:

³√(a^1/4) x (a^2)

Then you calculate:

³√(a^9/4)

(a^9/4) ^1/3

a^3(4)

Final answer:

4√(a^3)

Answer 2

(3i+7)(2-5i)

= 6i +15 +14 -35i

= 29-29i