Question

please help !!!!!!!
7. What is the expression written using each base only once?
(–4)^-6 · (–4)^7

4^13

–4

13

1

Answer 1

Try using:\[a^m\cdot a^n = a^{m + n}\]

Answer 2

it comes out to 1 so -4 because it cant have 1 as the base

Answer 3

Yes :-)

Answer 4

can you help with 1 more?

Answer 5

Sure, sure :-)

Answer 6

What is the value of y^(-5)/x^(-3) for x = 2 and y = –4?

Answer 7

when i do it it comes out as -129/128 so would it be -1/128