Question

help with exponential multiplication (see attach)

Answer 1

You're right. You take each term and raise it to the 4th power. Anytime you have terms in parentheses, you multiply the exponents. Here you can see why it works...

3^4 = 3*3*3*3 = 81
\[(a^{1})^{4} = a^{1}*a^{1}*a^{1}*a^{1} = a^{4}\]
\[(b^{3})^{4} = b^{3}*b^{3}*b^{3}*b^{3} = b^{12}\]

Answer 2

thanks for verifying