(2yx³-3x²y+4xy³)÷(-2x)÷(-y)

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(2yx³-3x²y+4xy³)÷(-2x)÷(-y)

(2yx³-3x²y+4xy³)÷(-2x)÷(-y)
(2yx³-3x²y+4xy³)÷(-2x)÷(-y)

(2yx³-3x²y+4xy³)÷(-2x)÷(-y)
原式=(2yx³-3x²y+4xy³)÷(2xy)
=2yx³÷(2xy)-3x²y÷(2xy)+4xy³÷(2xy)
=x²-3x/2+2y²