Question

If x and y are positive real numbers, simplify the following:
(i) (root x ^ -3)^5
(ii) 4th√cube√x^2

Answer 1

Answer:x^-15/2

Step-by-step explanation:

we have the exponent rule: (x^a) ^b = (x) ^ab

so, (root x^ -3)^5 = ((x^1/2) ^ -3) ^5

=(x^-3/2) 5

=x^-15/2