Posted by **Dyan** on Monday, June 1, 2009 at 11:01am.

The Power of a Power Rule

Simplify. All variables represent nonzero real numbers.

-5y^4(y^5)^2 / 15y^7(y^2)^3

I got:

-5y^40 / 15y^42

Is this correct?

- Math -
**bobpursley**, Monday, June 1, 2009 at 11:15am
no. In the numberator, y^5 squared is y^10. That times y^4 is y^14

In the denominator, y^2 cubed is y^6, and that times y^7 is y^13

then y^14/y^13 is y

- Math -
**Help!**, Monday, June 1, 2009 at 11:21am
Thanks. See my other post for a comment.

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