问题:
把(x-3) 2-2(x-3)-5(x-3) 2+(x-3)中的(x-3)看成一个因式合并同类项,结果应
[ ]
A.-4(x-3) 2+(x-3)
B.4(x-3) 2-x (x-3)
C.4(x-3) 2-(x-3)
D.-4(x-3) 2-(x-3)
把(x-3) 2-2(x-3)-5(x-3) 2+(x-3)中的(x-3)看成一个因式合并同类项,结果应
B.4(x-3) 2-x (x-3)
C.4(x-3) 2-(x-3)
D.-4(x-3) 2-(x-3)
[ ]
A.-4(x-3) 2+(x-3) B.4(x-3) 2-x (x-3)
C.4(x-3) 2-(x-3)
D.-4(x-3) 2-(x-3)
参考答案: