(3/4x²-1/3xy²+1/2x²y-2/5y³)+(y³+1/2xy ²-1/3x²y-5/4x³)=

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(3/4x²-1/3xy²+1/2x²y-2/5y³)+(y³+1/2xy²-1/3x²y-5/4x³)=(3/4x&#

(3/4x²-1/3xy²+1/2x²y-2/5y³)+(y³+1/2xy ²-1/3x²y-5/4x³)=
(3/4x²-1/3xy²+1/2x²y-2/5y³)+(y³+1/2xy ²-1/3x²y-5/4x³)=