Posted by **Donnice** on Friday, August 12, 2011 at 7:05pm.

Simplify the following expression, and rewrite it in an equivalent form with positive exponents. -15x^4y/17x^2y7

A. -3x^2/y^6 B.3x^2/y^6 C.-3x^6y^8 D. 52x^2/y^6

- check for typos -
**Damon**, Friday, August 12, 2011 at 7:11pm
there is not much you can do with -15/17

put numerator and denominator in parentheses

do you mean y^7 in denominator?

- Math -
**Donnice**, Friday, August 12, 2011 at 7:20pm
i have to choose ab or c

- Math -
**Damon**, Friday, August 12, 2011 at 7:25pm
Well, Look at what you typed. No way anything with 15 in the numerator and 17 (a prime number) in the denominator is going to come out to a b c or d.

You have a mistake or your book has a mistake.

- Math -
**Donnice**, Friday, August 12, 2011 at 7:28pm
-51x^4y/17x^2y^7

- Math -
**Donnice**, Friday, August 12, 2011 at 7:30pm
I think its A

- Math -
**Damon**, Friday, August 12, 2011 at 8:08pm
Thank you for the 51 instead of the 15

Now you know the correct answer has to start with -51/17 which is -3

x^4/x^2 = x^2

so far

-3 x^2

now y/y^7 = 1/y^6

so in the end

-3 x^2 / y^6

which is

A

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