经典因式分解练习题100道
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因式分解综合训练（1）
1.）3a³b²c－12a²b²c2＋9ab²c³
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2.）16x²－81=________________________________
3.）xy＋6－2x－3y =__________________________
4.）x²(x－y)＋y²(y－x)
=__________________________________________ 5.）2x²－(a－2b)x－ab
=_________________________________________
6.）a4－9a²b²=_______________________________
7.）x³＋3x²－4 =______________________________
8.）ab(x²－y²)＋xy(a²－b²)
=________________________________________ 9.）(x＋y)(a－b－c)＋(x－y)(b＋c－a)
=______________________________________________
10.）a²－a－b²－b =____________________________
11.）(3a－b)²－4(3a－b)(a＋3b)＋4(a＋3b)²
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12.）(a＋3) ²－6(a＋3) =___________________________
13.）(x＋1) ²(x＋2)－(x＋1)(x＋2) ²
=_____________________________________________ 14．）16x²－81 =______________________________
15.）9x²－30x＋25 =__________________________
16.）x²－7x－30 =______________________________ 17.) x(x＋2)－x =____________________________
18.) x²－4x－ax＋4a=__________________________
19.) 25x²－49 =______________________________
20.) 36x²－60x＋25 =___________________________
21.) 4x²＋12x＋9 =_____________________________
22.) x²－9x＋18 =______________________________
23.) 2x²－5x－3 =_______________________________
24.) 12x²－50x＋8 =____________________________
25.) 3x²－6x =__________________________________
26.) 49x²－25 =_________________________________
27.) 6x²－13x＋5 =_____________________________
28.) x²＋2－3x =________________________________
29.) 12x²－23x－24 =______________________________
30.) (x＋6)(x－6)－(x－6) =_________________________
31.) 3(x＋2)(x－5)－(x＋2)(x－3)
=____________________________________________
32.) 9x²＋42x＋49=________________________________
33.) x4－2x³－35x=_______________________________
34.) 3x6－3x²=__________________________________
35.）x²－25 =________________________
36.）x²－20x＋100=__________________________
37.）x²＋4x＋3 =_____________________________
38.）4x²－12x＋5 =____________________________
39.）3ax²－6ax =________________________________
40.）(x＋2)(x－3)＋(x＋2)(x＋4)
=______________________________________
41.）2ax²－3x＋2ax－3
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42.）9x²－66x＋121
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43.）8－2x²=______________________________
44.）x²－x＋14 =____________________________
45.）9x²－30x＋25 =____________________________
46.）－20x²＋9x＋20 =___________________________
47.）12x²－29x＋15=___________________________
48.）36x²＋39x＋9 =_____________________________
49.）21x²－31x－22 =_____________________________
50.）9x4－35x²－4 =_______________________________
51.）(2x＋1)(x＋1)＋(2x＋1)(x－3)
=______________________________________________
52.）2ax²－3x＋2ax－3
=______________________________________________
53.）x(y＋2)－x－y－1
=_______________________________________________
54.) (x²－3x)＋(x－3) ²
=_______________________________________________
55.) 9x²－66x＋121
=_______________________________________________