计算[5xy²(x²-3xy)-(-3x²y²)³]÷(-5xy)²
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计算[5xy²(x²-3xy)-(-3x²y²)³]÷(-5xy)²
[5xy²(x²-3xy)-(-3x²y²)³]÷(-5xy)²
=(5x^3y²-15x²y^3+27x^6y^6)÷25x²y²
=0.2x-0.6y+1.08x^4y^4
计算[5xy²(x²-3xy)-(-3x²y²)³]÷(-5xy)²
[5xy²(x²-3xy)-(-3x²y²)³]÷(-5xy)²
=(5x^3y²-15x²y^3+27x^6y^6)÷25x²y²
=0.2x-0.6y+1.08x^4y^4