Please provide steps to factoring out this expression:

x^3 y^2 - 9x^3 - 8y^2 + 72

Thanks much!

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- Aug 30th 2010, 09:16 PMchopstixdcbFactor out COMPLETELY
Please provide steps to factoring out this expression:

x^3 y^2 - 9x^3 - 8y^2 + 72

Thanks much! - Aug 30th 2010, 09:23 PMmathaddict
- Aug 30th 2010, 09:30 PMchopstixdcb
So is this right?

(x-2)(x^2+2X+4)(y+3)(y-3)(y+3)(y-3)? - Aug 30th 2010, 09:36 PMmathaddict
- Aug 30th 2010, 09:47 PMchopstixdcb
I forgot, I understand now. The (y^2-9) allows me to group the (x^3-8). So I don't need those last two factors. Thanks so MUCH!