4x-6y-4x²-y²-2=-(y²+6y+9)-(4x²-4x+1)+10-2=
-(y+3)²-(2x-1)²+8
y=-3;(-(y+3)²=0
x=1/2 ;(-(2x-1)²=0
oтвет 8
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4x-6y-4x²-y²-2=-(y²+6y+9)-(4x²-4x+1)+10-2=
-(y+3)²-(2x-1)²+8
y=-3;(-(y+3)²=0
x=1/2 ;(-(2x-1)²=0
oтвет 8