Homework Help: Algebra

Posted by Abigail on Thursday, January 6, 2011 at 6:20pm.

I have an exponent properties test tomorrow, its our last one before the final, so its important, but anyways, there is one question on the review that is confusing me. Could you please help? Here it is :

(2y2x7)(-xy)(9x-3y)

I dont know if the exponents showed up, but the numbers after x & y in the first parenthasis part are exponents, and the -3 on the last one is an exponent.
Sorry if this is confusing. Thanks! (:

Algebra - Abigail, Thursday, January 6, 2011 at 6:27pm
I really need help with this, please!
Algebra - Dilara, Thursday, January 6, 2011 at 6:38pm
Factor: (x^2-1)/(4x-12) X (3x^2-12+9)/(x^2+x)
Algebra - helper, Thursday, January 6, 2011 at 6:48pm
are you multiplying this?

(2y^2 x^7) * (-xy) * (9x^-3 y)

If so the answer is,
-18x^5 y^4
Algebra - Abigail, Thursday, January 6, 2011 at 6:50pm
@helper:
Yes, thats it! I wasnt sure how to type it.
I solved it while I was waiting, and thats the answer I got ,thanks so much!

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