Please provide steps to factoring out this expression: x^3 y^2 - 9x^3 - 8y^2 + 72 Thanks much!
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Originally Posted by chopstixdcb Please provide steps to factoring out this expression: x^3 y^2 - 9x^3 - 8y^2 + 72 Thanks much! Then here, make use of the identities:
So is this right? (x-2)(x^2+2X+4)(y+3)(y-3)(y+3)(y-3)?
Originally Posted by chopstixdcb So is this right? (x-2)(x^2+2X+4)(y+3)(y-3)(y+3)(y-3)? Why did you give an extra of 2 factors? The last 2?
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!
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