Question

Simplify. (2y)^-3

Answer 1

(2y)^3 would be 8y^3
But When the power is negative then INVERSE it
So

(2y)^-3

1/8y^3

Got that? :)

Answer 2

2^-1 = 1/2
(ab)^-1 = 1/ab :D

Answer 3

why is it not 1/6y^3

Answer 4

Welcome to openstudy btw :)

Answer 5

because the POWER is -3
And it is not MULTIPLIED by that!
So 2^3 is NOT equal to 6 but is equal to 2*2*2 = 8
Got that?
And yes a warm welcome to openstudy! :)

Answer 6

Yup thanks so much. You guys are super helpful!

Answer 7

:)

Answer 8

You can give medals by hitting the "Best Response" button that's at right there.

Answer 9

To people that help you of course

Answer 10

Haha..@sdw0202
Thanks! :D