N
nam8649


7x(4x-2)-(x-3)(x-1)+16x
(2x+y)^2+(x-y)^2-5(x+y)(x-y)
(x-y+z)^2+(y-z)+2(x-y+z)(z-y)
Tìm GTNN;
A=4x^2-8x+1
(2x+y)^2+(x-y)^2-5(x+y)(x-y)
(x-y+z)^2+(y-z)+2(x-y+z)(z-y)
Tìm GTNN;
A=4x^2-8x+1
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