(3x^2+1/2y-2/3y^2)*(-1/2xy)^2
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(3x^2+1/2y-2/3y^2)*(-1/2xy)^2
![(3x^2+1/2y-2/3y^2)*(-1/2xy)^2](/uploads/image/z/16490590-70-0.jpg?t=%283x%5E2%2B1%2F2y-2%2F3y%5E2%29%2A%28-1%2F2xy%29%5E2)
(3x^2+1/2y-2/3y^2)*(-1/2xy)^2
=(3x²+1/2y-2/3y²)(1/4x²y²)
=3/4x^4y²+1/8x²y³-1/6x²y^4
=(3x²+1/2y-2/3y²)(1/4x²y²)
=3/4x^4y²+1/8x²y³-1/6x²y^4
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