(-2x²y+6x³y⁴-8xy)÷(-2xy)

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(-2x²y+6x³y⁴-8xy)÷(-2xy)
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(-2x²y+6x³y⁴-8xy)÷(-2xy)
(-2x²y+6x³y⁴-8xy)÷(-2xy)

(-2x²y+6x³y⁴-8xy)÷(-2xy)
(-2x²y+6x³y⁴-8xy)÷(-2xy)=-2x²y÷(-2xy)+6x³y⁴÷(-2xy)+(-8xy)÷(-2xy)=x-3x²y³+4

不会我继续教你

x-3x²y³+4

原式=-2x²y÷(-2xy)+6x³y⁴÷(-2xy)+(-8xy)÷(-2xy)=x-3x²y³+4