3(2x^2-y^2)-(3x^2-2y^3)化简此式子!

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3(2x^2-y^2)-(3x^2-2y^3)化简此式子!
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3(2x^2-y^2)-(3x^2-2y^3)化简此式子!
3(2x^2-y^2)-(3x^2-2y^3)化简此式子!

3(2x^2-y^2)-(3x^2-2y^3)化简此式子!
3(2x^2-y^2)-(3x^2-2y^3)化简此式子
=6x^2-3y^2-3x^2+2y^3
=3x^2-3y^2+2y^3

3(2x^2-y^2)-(3x^2-2y^3)
=6x²-3y²-3x²+2y³
=3x²-3y²+2y³