SOLUTION: Could someone please help me with this problem multiplying rational expressions? I am supposed to describe and correct the error, but I don't know how to show you what is cancelle

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Question 1027185: Could someone please help me with this problem multiplying rational expressions? I am supposed to describe and correct the error, but I don't know how to show you what is cancelled out. So, if someone could just please show me how to work the problem, I can figure out the error. The problem is:
15x^2-9x-6/3x^2-3x-6 *6x^2-6x-12/2x^2+2x-4.
Thanks for your time!
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
Fraction skills, factorizing and reducing.

This is not what you mean:
15x^2-9x-6/3x^2-3x-6 *6x^2-6x-12/2x^2+2x-4

The rendering is this:


Best guess is you really have this:




See some common factors in numerator and denominator, and cancel them as redundant factors of 1.

and




Finish the multiplication to simplify,
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

Could someone please help me with this problem multiplying rational expressions? I am supposed to describe and correct the error, but I don't know how to show you what is cancelled out. So, if someone could just please show me how to work the problem, I can figure out the error. The problem is:
15x^2-9x-6/3x^2-3x-6 *6x^2-6x-12/2x^2+2x-4.
Thanks for your time!
USE PARENTHESES! Why can't you use parentheses?

Assuming it's: 

 *  ----- Factoring out GCFs

 *  ---- Cancelling GCFs

 * 

 * 

 * 

 

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