Hi Diana,
Let's do a couple of example with numbers first.
√4 = 2 since 2 2 = 4, in other words 2^{2} = 4
√9 = 3 since 3 3 = 9, in other words 3^{2} = 9
√64 = 8 since 8 8 = 64, in other words 8^{2} = 64
So what about ?
a a = a^{2} and hence = a.
And ?
x^{3} x^{3} = x^{6} and hence = x^{3}
Can you now do the remaining two problems?
Harley
