浙教版七年级下第四章因式分解100道过关题
1.ap+aq-am 2.4 a b 8a b c3 2 2
=a(p+q-m)
4a b( a 2bc )2
3.-2x-2y=-2(x+y)
4.2πR-2πr
=2π(R-r)
浙教版七年级下第四章因式分解100道过关题
5. 3m 9m 12mn3 2
6.32 p q 8 pq m2 3 4
3m(m 3m 4n)2
8 pq (4 p qm )3
7.3a 6ab a a(3a 6b 1)2
8. 8a b 2ab 6b2 2
2
2b(4a a 3b)
浙教版七年级下第四章因式分解100道过关题
9.15 a b 20 a b 10.30a b 15ab 10a b2 2 22 3 4
3 2
5a b(3 4b)2
5ab (6ab 3b 2a )2 2 2
11.10a b 20a b 50a b2 2 3 4
12. 48mn 24 m n 24 mn (2 mn )2
2 3
10a b(1 2b 5a )2 2 2
浙教版七年级下第四章因式分解100道过关题
13 .6 y 18 y 6 y3 2
6 y ( y 3 y 1)2
14.(2a b)(2a 3b) a(2a b) (2a b)(2a 3b a) (2a b)(3a 3b) 3(2a b)(a b)
15.a ( x 5) 4(5 x)2
( x 5)(a 4)2
16.39X 37 13X 3 39X 37 39X 274
( x 5)(a 2)(a 2)
39X (37 27) 390
浙教版七年级下第四章因式分解100道过关题
a2
17.21 3.14 31 3.14 3.14 (21 31) 3.14 ( 10) 31.4
18.x 9 ( x 3)(x 3)2
19.16m 9n2
2
20.9 x x3
(4m 3n)(4m 3n)
x (9 x 1)2
x (3 x 1)(3 x 1)
浙教版七年级下第四章因式分解100道过关题
21.81a 4 b 4 (9a b )(9a b )2 2 2 2
(3a b)(3a b)(9a b )2 2
22.4 x 9 (2 x 3)(2 x 3)2
9 2 16 2 2 2 24.x y 23. x y 25 81 ( x y)(x y) 3 4 3 4 ( x y )( x y ) 5 9 5 9
浙教版七年级下第四章因式分解100道过关题
a2
25.(2a b) (a b) (2a b a b)(2a b a b) 3a(a 2b)2 22
26.4a 3b 16ab3 4ab(a 2 4b 2 ) 4ab(a 2b)(a 2b)100
2 2 1 27.(54 ) 45 3 3 2 1 2 1 (54 45 )(54 45 ) 3 3 3 3 1 100 9 3 2800 3
28.2 2
2
101 100
100
2 2
2
100
浙教版七年级下第四章因式分解100道过关题
a2
29.4 x 12x92
30 .9m 6m 12
(2 x 3)
2
(3m 1)
2
31.x 10x 252
32 .a 4ba 4b2
2
( x 5)
2
( a 2b)
2
浙教版七年级下第四章因式分解100道过关题
a2
33.x 4 x 42
( x 2)2
2
1 2 34.a ab b 4 1 2 ( a b) 222
35.3ax 6axy 3ay 3a( x 2 xy y )2 2
36. x 4 xy 4 y2 2 2
2
( x 4 xy 4 y ) ( x 2 y )2
3a( x y )
2
浙教版七年级下第四章因式分解100道过关题
a2
37.16m 8m n n4 2 2
4
38.9( x y ) 6( x y ) 12
( 4m n )2 2
2 2 2
[3( x y ) 1] (3x 3 y 1)2
2
( 2m n) ( 2m n)
2
39. p 4 ( p 2)( p 2)2
40.4 x 4 x 1 (2 x 1)2
浙教版七年级下第四章因式分解100道过关题
a2
41.(a b)(a b) (b a) (a b)(a b 1)
42.8a bc 4ab2
4ab(2ac 1)44. 9a 16b (4b 3a)(4b 3a)2 2
43. x 3x x( x 3)2
浙教版七年级下第四章因式分解100道过关题
a2
45.b 4a 4a 12 2
b (4a 4a 1)2 2 2
b (2a 1) (b 2a 1)(b 2a 1)2
46.b a 3(a b) (b a)[1 3(b a)] (b a)(1 3b 3a)2
47.4( a b) 8a 8b2
4( a b) 8( a
b)2
4( a b)[(a b) 2] 4( a b)(a b 2)
x y 48. 4 9 y x y x ( )( ) 3 2 3 2
2
2
浙教版七年级下第四章因式分解100道过关题
a2
x y 49. 25 16 x y x y ( )( ) 5 4 5 451. 3x 6 x 3x2 3
2
2
1 50.16x 4 x 4 1 2 (4 x ) 22
52.0.1a 0.8a 1.64 2
3x(1 2 x x )2
0.1(a 8a 16)4 2 2
3x(1 x)
2
0.1(a 4)
2
浙教版七年级下第四章因式分解100道过关题
a2
53.x 12x 362
54 .a b 6ab 92 2
( x 6)2
2
(ab 3)
2
55. 4 x 12x 9 (4 x 12x 9)2
(2 x 3)
2
4 2 9 2 56. a 2ab b 9 4 2 3 2 ( a b) 3 2
浙教版七年级下第四章因式分解100道过关题
a2
57.49.9 9.98 0.12
2
58.99 1992
(49.9 0.1) 50 25002
2
99 198 12
(99 1) 1002
2
100002
59.(a b) 2(a b) 1 (a b 1)2
60.4a(a b) b 4a 4ab b2
2
2
( 2a b)
2
浙教版七年级下第四章因式分解100道过关题
a2
61.4 xy 4 x y y2 2 2 2 2
3
62.(4a 1) 16a2 2 2
2 2
y (4 xy 4 x y )2
(4a 1 4a)(4a 1 4a)
1 3 3 2 4 64. m n 2m n 63.(4a 1) 16a 2 2 2 (4a 1 4a )(4a 1 4a ) 1 2 2 2 2 m n(m 4n ) (2a 1) (4a 1 4a ) 2
y ( 4 xy 4 x y ) (2a 1) 2 (2a 1) 2 2 y (2 x y )
