Question

Which is an equivalent expression to b^-3•n^-6?

1/n^9

1/n^-9

1/n^-18

1/n^18

(they are fractions) PLEASE ANSWER ASAP. NEED IT

Answer 1

I think you may have made a mistake when entering the original equation. Assuming you meant to put "n" where you put "b" as the variable, the answer is b) 1/n^-9

Explanation:

You simply add exponents when multiplying them if they have the same base. Thus -3 + -6 is -9.