-х/(2у-х)+у/(х+2у)+(х²-3ху+10у²)/(2у-х)(2у+х)=(-х²-2ху+2у²-ху+х²-3ху+10у²)/(2у-х)(2у+х)=(-6ху+12у²)/4у²-х²
(-5*4*17)/(3*6)+12*(17/6)²=(68+289)/3=357/3=119
(4*289)/369-16/9=273/9
(119*9)/273=51/13 или 3 целых 12/13
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X/(x-2y)+y/(x-2y)-(x²+3xy+10y²)/[(x-2y)(x+2y)]==(x²+2xy+xy-2y²-x²+3xy-10y²)/[(x-2y)(x+2y)]=(6xy-12y²)/[(x-2y)(x+2y)]=
=6y(x-2y)[(x-2y)(x+2y)]=6y/(x+2y)
x=1 1/3 y=2 5/6
6*2 5/6:(1 1/3+2*2 5/6)=6*17/6:(1 1/3+5 2/3)=17:7=2 3/7
-х/(2у-х)+у/(х+2у)+(х²-3ху+10у²)/(2у-х)(2у+х)=(-х²-2ху+2у²-ху+х²-3ху+10у²)/(2у-х)(2у+х)=(-6ху+12у²)/4у²-х²
(-5*4*17)/(3*6)+12*(17/6)²=(68+289)/3=357/3=119
(4*289)/369-16/9=273/9
(119*9)/273=51/13 или 3 целых 12/13