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phuong trinh kia chinh la
$\left ( x+1 \right )^{3}+\left ( y+1 \right )^{3}+\left (x+1 \right )+\left ( y+1 \right )=0$
PTDTTHT tim ra x+y=-2
ban tu lam tiep nhe to luoi lam
- anhtukhon1 and chaubee2001 like this
toan9thd
#605537 Cho $x^3 +y^3 + 3(x^2 +y^2 ) +4(x+y) + 4 = 0, xy>0$ Tìm max...
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on 27-12-2015 - 17:08
