
4题和5题,求解答!
1个回答
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4、
(6x²y-xy²-1/2x²y³)÷(-3xy)
=6x²y÷(-3xy)-xy²÷(-3xy)-1/2x²y³÷(-3xy)
=-2x+1/3y+1/6xy²
5、
【x(x²y²-xy)】-x【(x²y-x³y)】÷3x²y
=x³y³-x²y-x³y÷3x²y+x^4y÷3x²y
=x³y³-x²y-1/3x+1/3x²
(6x²y-xy²-1/2x²y³)÷(-3xy)
=6x²y÷(-3xy)-xy²÷(-3xy)-1/2x²y³÷(-3xy)
=-2x+1/3y+1/6xy²
5、
【x(x²y²-xy)】-x【(x²y-x³y)】÷3x²y
=x³y³-x²y-x³y÷3x²y+x^4y÷3x²y
=x³y³-x²y-1/3x+1/3x²
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