Hi Diana,

Let's do a couple of example with numbers first.

√4 = 2 since 2 2 = 4, in other words 2² = 4
√9 = 3 since 3 3 = 9, in other words 3² = 9
√64 = 8 since 8 8 = 64, in other words 8² = 64

So what about ?

a a = a² and hence = a.

And ?

x³ x³ = x⁶ and hence = x³

Can you now do the remaining two problems?

Harley