Question

Which expression is equivalent to (15²)(15^-7)?

A 15^-21
B -15^4
C 1/15^4
D 1/15^-4

Answer 1

Answer:

there is no answer

Step-by-step explanation:

If you multiply 15^x by 15^y, the answer is 15^(x+y) so 2 plus -7 is negitive 5.

but there is no answer equal to this.