求答案,因式分解,要过程
1.(3a-b)2-4(3a-b)(a+3b)+4(a+3b)22.(a+3)2-6(a+3)3(x+1)2(x+2)-(x+1)(x+2)24.abc+ab-4a5.1...
1.(3a-b)2-4(3a-b)(a+3b)+4(a+3b)2
2.(a+3)2-6(a+3)
3(x+1)2(x+2)-(x+1)(x+2)2
4.abc+ab-4a
5.16x2-81
6.9x2-30x+25
7.x2-7x-30
8.x2-25
9.x2-20x+100
10.x2+4x+3
11.4x2-12x+5
12.3ax2-6ax
13.x(x+2)-x
14.x2-4x-ax+4a
15.25x2-49
16.36x2-60x+25
17.4x2+12x+9
18.x2-9x+18
19.2x2-5x-3
20.12x2-50x+8
21.(x+2)(x-3)+(x+2)(x+4)
22.2ax2-3x+2ax-3
23.9x2-66x+121
24.8-2x2
25.x2-x+14
26.9x2-30x+25
27.-20x2+9x+20
28.12x2-29x+15
29.36x2+39x+9
30.21x2-31x-22
31.9x4-35x2-4
32.(2x+1)(x+1)+(2x+1)(x-3)
33.2ax2-3x+2ax-3
34.x(y+2)-x-y-1
35.(x2-3x)+(x-3)2
36.9x2-66x+121
37.8-2x2
38.x4-1
39.x2+4x-xy-2y+4
40.4x2-12x+5
41.21x2-31x-22
42.3x2-6x
43.49x2-25
44.6x2-13x+5
45.x2+2-3x
46.12x2-23x-24
47.(x+6)(x-6)-(x-6)
48.3(x+2)(x-5)-(x+2)(x-3)
49.9x2+42x+49
50.5ax+5bx+3ay+3by 展开
2.(a+3)2-6(a+3)
3(x+1)2(x+2)-(x+1)(x+2)2
4.abc+ab-4a
5.16x2-81
6.9x2-30x+25
7.x2-7x-30
8.x2-25
9.x2-20x+100
10.x2+4x+3
11.4x2-12x+5
12.3ax2-6ax
13.x(x+2)-x
14.x2-4x-ax+4a
15.25x2-49
16.36x2-60x+25
17.4x2+12x+9
18.x2-9x+18
19.2x2-5x-3
20.12x2-50x+8
21.(x+2)(x-3)+(x+2)(x+4)
22.2ax2-3x+2ax-3
23.9x2-66x+121
24.8-2x2
25.x2-x+14
26.9x2-30x+25
27.-20x2+9x+20
28.12x2-29x+15
29.36x2+39x+9
30.21x2-31x-22
31.9x4-35x2-4
32.(2x+1)(x+1)+(2x+1)(x-3)
33.2ax2-3x+2ax-3
34.x(y+2)-x-y-1
35.(x2-3x)+(x-3)2
36.9x2-66x+121
37.8-2x2
38.x4-1
39.x2+4x-xy-2y+4
40.4x2-12x+5
41.21x2-31x-22
42.3x2-6x
43.49x2-25
44.6x2-13x+5
45.x2+2-3x
46.12x2-23x-24
47.(x+6)(x-6)-(x-6)
48.3(x+2)(x-5)-(x+2)(x-3)
49.9x2+42x+49
50.5ax+5bx+3ay+3by 展开
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