求这数学题的解答·在线等,急!
本题:4(x^5)y³÷{x⁴y³÷[x³y÷(x³y²÷2xy²)]} (其中: x=-2,y=3)
=4(x^5)y³÷{x⁴y³÷[x³y÷(x²/2)]}
=4(x^5)y³÷[x⁴y³÷(2xy)]
=4(x^5)y³÷(x³y²/2)
=8x²y (把x=-2,y=3代入)
=8*(-2)²×3
=8×4×3
=96
4x^5y^3÷{x^4y^3÷[x^3y÷(x^3y^2÷2xy^2)]}
=4x^5y^3÷[x^4y^3÷(x^3y÷x^2/2)]
=4x^5y^3÷(x^4y^3÷2xy)
=4x^5y^3÷x^3y^2/2
=8x^2y
=8*(-2)^2*3
=96
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