计算题(-3x^2y^2+6x^2y^2-1/3xy)÷(-1/3xy)
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计算题(-3x^2y^2+6x^2y^2-1/3xy)÷(-1/3xy)
计算题(-3x^2y^2+6x^2y^2-1/3xy)÷(-1/3xy)
计算题(-3x^2y^2+6x^2y^2-1/3xy)÷(-1/3xy)
(-3x^2y^2+6x^2y^2-1/3xy)÷(-1/3xy)
=(3x²y²-xy/3)÷(-xy/3)
=(3x²y²)÷(-xy/3)-(xy/3)÷(-xy/3)
=1-9xy
=[1+3√(xy)]*[1-3√(xy)]
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