(2x^3y)^2×(-2xy)+(-2x^3y)^3÷(2x^2)
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(2x^3y)^2×(-2xy)+(-2x^3y)^3÷(2x^2)
原式
=(2x^3y)^2×(-2xy)+(-2x^3y)^3÷(2x^2)
=(4x^6y^2)×(-2xy)+(-8x^9y^3)÷(2x^2)
=-8x^7y^3-4x^7y^3
=-12x^7y^3
=(2x^3y)^2×(-2xy)+(-2x^3y)^3÷(2x^2)
=(4x^6y^2)×(-2xy)+(-8x^9y^3)÷(2x^2)
=-8x^7y^3-4x^7y^3
=-12x^7y^3
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[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)
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