# Math

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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 -

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 -

Thanks. See my other post for a comment.

• Math -

Wow... this is all the way from 2009 and I'm commenting on this in 2016. Really scary...

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