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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 8: cho A =(2x^2-4x+2)/(x-1)^2 khi đó? A.A=2 B.A=3 c.a>4

Toán Lớp 8: cho A =(2x^2-4x+2)/(x-1)^2 khi đó?
A.A=2
B.A=3
c.a>4