(3x^2y-2x+1)(-2xy)
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(3x^2y-2x+1)(-2xy)(3x^2y-2x+1)(-2xy)(3x^2y-2x+1)(-2xy)(2x²y-2x+1)(-2xy)=2x²y(-2xy)-2x(-2xy
(3x^2y-2x+1)(-2xy)
(3x^2y-2x+1)(-2xy)
(3x^2y-2x+1)(-2xy)
(2x²y-2x+1)(-2xy)
=2x²y(-2xy)-2x(-2xy)+(-2xy)
=-4x³y²+4x²y-2xy
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