Question

check out attachment in the comment box for the question
Is the answer either A or B?

Answer 1

Keep the whole number and add the exponents.

Answer 2

For a question like this it's important to learn the rule instead of learning the answer to a particular problem. Consider this problem:\[x^3\times x^4\]This is x times x times x, multiplied by x times x times x times x. Altogether we're multiplying x seven times, so the answer is\[x^7\]We get that answer by adding the exponents.

Answer 3

I understand now. Thank you!