问题
解答题
计算:
|
答案
÷x2-3x+2 x2-5x+6 x2-5x+4 x2-7x+12
=
÷(x-1)(x-2) (x-2)(x-3)
(3分)(x-1)(x-4) (x-3)(x-4)
=
×x-1 x-3
(4分)x-3 x-1
=1.(5分)
计算:
|
÷x2-3x+2 x2-5x+6 x2-5x+4 x2-7x+12
=
÷(x-1)(x-2) (x-2)(x-3)
(3分)(x-1)(x-4) (x-3)(x-4)
=
×x-1 x-3
(4分)x-3 x-1
=1.(5分)