Question

How do you use laws of exponents to simplify `x^(3a) * x^(4a)`?

Answer 1

You get: `x^(7a)`

Explanation:

The law of exponents you need states that:
`x^a*x^b=x^(a+b)`
so if you have the same base, in a multiplication, you can add the exponents.
In your case:
`x^(3a)*x^(4a)=x^(3a+4a)=x^(7a)`