Exponent Evaluation with Roots

Consider the expression $$x^{(3/2)} imes x^{(5/2)}$$. If $$x = 4$$, what is the value of the expression?

Recall the property of exponents that states $$a^m imes a^n = a^{(m+n)}$$, where $$a$$ is any non-zero number and $$m$$ and $$n$$ are any real numbers.