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[5xy²(x²-3xy)+(3x²y²)³]÷(5xy)²
=
[5xy²(x²-3xy)+(3x²y²)³]
----------------------------------
(5xy)²
=
5xy²(x²-3xy) (3x²y²)³
------------------ + ------------
(5xy)² (5xy)²
=
5x³y² 15x²y³ (3x²y²)³
----------- -- ---------- + ------------
(5xy)² (5xy)² (5xy)²
=
(1/5)x-(3/5)y+3/5(x^4y^4)
=
[5xy²(x²-3xy)+(3x²y²)³]
----------------------------------
(5xy)²
=
5xy²(x²-3xy) (3x²y²)³
------------------ + ------------
(5xy)² (5xy)²
=
5x³y² 15x²y³ (3x²y²)³
----------- -- ---------- + ------------
(5xy)² (5xy)² (5xy)²
=
(1/5)x-(3/5)y+3/5(x^4y^4)
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展开全部
原式=[5x^3y^2-15x^2y^3+27x^6y^6]/(25x^2y^2)
=(5x-15y+27x^4y^4)/25
=(5x-15y+27x^4y^4)/25
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