初中九年级数学上册因式分解法解一元二次方程综合练习题4.docx
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初中九年级数学上册因式分解法解一元二次方程综合练习题4.docx
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初中九年级数学上册因式分解法解一元二次方程综合练习题4
7x2-2x=0
2x2+x=0
x2+4x=-4
9x2-9=0
x(3x-9)=18x-54
(3x+7)2=(6+x)2
x2-4x=0
5x2+4x=0
x2+6x=-9
81x2-9=0
x(3x-1)=9x-3
(x+8)2=(4-9x)2
4x2-x=0
x2+x=0
x2+20x=-100
36x2-144=0
x(2x+1)=6x+3
(9x+1)2=(7+x)2
x2+8x=0
3x2+2x=0
x2+16x=-64
16x2-400=0
4x(4x+7)=8x+14
(x-5)2=(6-x)2
x2+9x=0
7x2+x=0
x2+18x=-81
16x2-25=0
x(4x+4)=20x+20
(5x-4)2=(3-x)2
4x2-8x=0
3x2+x=0
x2-4x=-4
81x2-256=0
4x(2x-1)=12x-6
(x-2)2=(9+x)2
8x2-8x=0
6x2+x=0
x2-8x=-16
16x2-16=0
4x(2x+3)=6x+9
(8x+1)2=(4+2x)2
3x2+3x=0
3x2+4x=0
x2-4x=-4
36x2-81=0
x(4x-2)=12x-6
(x+2)2=(5-x)2
5x2-x=0
5x2-5x=0
x2+14x=-49
16x2-256=0
4x(3x-2)=12x-8
(x-7)2=(10-5x)2
x2-3x=0
x2-2x=0
x2+20x=-100
16x2-361=0
x(3x+8)=9x+24
(x-6)2=(8+6x)2
7x2-2x=0
4x2-4x=0
x2+10x=-25
25x2-169=0
3x(3x+9)=18x+54
(x+8)2=(7+x)2
9x2+x=0
3x2+x=0
x2+8x=-16
9x2-256=0
x(4x-4)=12x-12
(4x-2)2=(4-x)2
3x2+2x=0
8x2-3x=0
x2-16x=-64
25x2-1=0
x(2x+7)=12x+42
(x+6)2=(3+6x)2
6x2-7x=0
x2+x=0
x2-2x=-1
49x2-9=0
x(4x+8)=8x+16
(x-7)2=(4-8x)2
3x2+3x=0
x2+x=0
x2-10x=-25
4x2-4=0
3x(2x-7)=4x-14
(7x+6)2=(6-5x)2
9x2+5x=0
9x2-4x=0
x2+4x=-4
4x2-16=0
x(4x+9)=24x+54
(x-2)2=(1+x)2
2x2+7x=0
7x2-5x=0
x2-12x=-36
81x2-289=0
2x(2x+5)=4x+10
(6x-6)2=(6+x)2
2x2-x=0
7x2-x=0
x2+12x=-36
64x2-36=0
x(4x-7)=20x-35
(x+2)2=(2+x)2
x2-2x=0
8x2-5x=0
x2+18x=-81
36x2-169=0
x(4x-8)=12x-24
(6x-3)2=(7+x)2
2x2+6x=0
2x2+4x=0
x2-4x=-4
100x2-100=0
2x(2x-5)=8x-20
(2x-5)2=(10+7x)2
x2-4x=0
x2+3x=0
x2-18x=-81
36x2-121=0
x(4x+5)=12x+15
(x-9)2=(10+8x)2
5x2-4x=0
2x2+x=0
x2-14x=-49
9x2-4=0
x(2x+6)=4x+12
(3x-6)2=(5-3x)2
6x2-8x=0
5x2+2x=0
x2+8x=-16
36x2-225=0
x(3x+5)=18x+30
(5x+1)2=(10+x)2
2x2-3x=0
5x2-x=0
x2-14x=-49
36x2-256=0
3x(3x+7)=12x+28
(5x-1)2=(3-6x)2
x2-4x=0
6x2-3x=0
x2+20x=-100
36x2-100=0
4x(4x+6)=24x+36
(x-2)2=(5-x)2
9x2+x=0
9x2-2x=0
x2-6x=-9
9x2-225=0
4x(3x+7)=15x+35
(x-9)2=(9+x)2
x2-7x=0
2x2-3x=0
x2-20x=-100
81x2-400=0
2x(4x-5)=16x-20
(x+7)2=(2-3x)2
9x2+2x=0
2x2-3x=0
x2+16x=-64
25x2-1=0
x(3x+5)=6x+10
(x+1)2=(2+8x)2
7x2+8x=0
4x2-4x=0
x2+4x=-4
4x2-196=0
x(3x-3)=12x-12
(x+9)2=(5-x)2
9x2+4x=0
3x2-2x=0
x2-12x=-36
25x2-169=0
x(3x+9)=15x+45
(x-8)2=(5+x)2
2x2+2x=0
5x2+x=0
x2+20x=-100
4x2-9=0
x(2x-9)=10x-45
(x+6)2=(4+x)2
4x2-5x=0
6x2-5x=0
x2-14x=-49
25x2-9=0
4x(4x+2)=12x+6
(x-4)2=(5+9x)2
7x2+x=0
4x2+x=0
x2+6x=-9
4x2-256=0
3x(4x+8)=20x+40
(8x-4)2=(2-x)2
x2+x=0
2x2-x=0
x2-6x=-9
25x2-121=0
3x(3x-9)=18x-54
(x+2)2=(8-x)2
2x2+4x=0
x2+x=0
x2-14x=-49
16x2-16=0
3x(4x-2)=20x-10
(2x-2)2=(4-x)2
x2-5x=0
x2+x=0
x2+8x=-16
81x2-16=0
x(3x-1)=6x-2
(x-1)2=(4+7x)2
2x2+8x=0
6x2-x=0
x2-14x=-49
49x2-64=0
4x(4x+6)=8x+12
(8x-2)2=(10-3x)2
x2-x=0
6x2+4x=0
x2-20x=-100
4x2-400=0
x(4x+7)=8x+14
(x+2)2=(5-3x)2
9x2-9x=0
x2+3x=0
x2-2x=-1
16x2-144=0
3x(4x-6)=12x-18
(9x+4)2=(3-6x)2
5x2+4x=0
8x2+x=0
x2-12x=-36
100x2-169=0
x(2x+9)=4x+18
(x+3)2=(9-7x)2
4x2-7x=0
5x2+4x=0
x2+8x=-16
64x2-169=0
2x(4x+6)=12x+18
(3x+3)2=(8+x)2
7x2-6x=0
3x2+3x=0
x2+2x=-1
16x2-100=0
x(2x-3)=4x-6
(x+2)2=(7-x)2
7x2+8x=0
6x2+2x=0
x2+14x=-49
25x2-256=0
2x(3x+3)=15x+15
(9x-2)2=(5-x)2
x2+x=0
2x2+x=0
x2-18x=-81
25x2-324=0
x(3x-1)=12x-4
(5x-7)2=(3-9x)2
2x2+3x=0
x2+x=0
x2+16x=-64
16x2-4=0
4x(3x+8)=18x+48
(x-5)2=(5-4x)2
2x2-8x=0
x2+x=0
x2+2x=-1
100x2-16=0
x(3x-3)=12x-12
(4x+9)2=(4+9x)2
6x2+9x=0
7x2-5x=0
x2+6x=-9
49x2-324=0
4x(4x+2)=8x+4
(2x-3)2=(3-9x)2
4x2+6x=0
9x2-4x=0
x2+18x=-81
16x2-36=0
4x(4x-7)=8x-14
(8x-2)2=(8-x)2
4x2+2x=0
6x2-2x=0
x2+16x=-64
36x2-36=0
2x(4x-5)=16x-20
(x+9)2=(4+x)2
3x2-6x=0
9x2+4x=0
x2-14x=-49
9x2-9=0
2x(2x-3)=8x-12
(5x+8)2=(3-x)2
3x2-9x=0
5x2-4x=0
x2-14x=-49
25x2-1=0
x(4x-9)=16x-36
(x+8)2=(7+3x)2
6x2-8x=0
4x2+5x=0
x2-14x=-49
64x2-1=0
x(3x-8)=6x-16
(x+8)2=(4-x)2
7x2-4x=0
4x2-x=0
x2-2x=-1
100x2-225=0
x(2x-4)=8x-16
(x+1)2=(1-7x)2
6x2+6x=0
4x2+x=0
x2-6x=-9
100x2-196=0
3x(2x-2)=12x-12
(5x+4)2=(7+8x)2
6x2-2x=0
8x2-x=0
x2+10x=-25
49x2-81=0
x(3x-8)=9x-24
(x-2)2=(5+x)2
x2-x=0
5x2-x=0
x2-16x=-64
81x2-225=0
4x(3x+7)=6x+14
(5x-8)2=(7-5x)2
x2+7x=0
5x2-3x=0
x2-12x=-36
9x2-144=0
x(4x+8)=16x+32
(x+6)2=(9+8x)2
x2-9x=0
5x2+2x=0
x2+12x=-36
9x2-196=0
4x(3x-5)=18x-30
(x+9)2=(6+x)2
7x2-5x=0
9x2-x=0
x2-12x=-36
81x2-1=0
4x(4x-2)=8x-4
(x+4)2=(5-x)2
x2+8x=0
5x2-5x=0
x2+10x=-25
49x2-144=0
4x(4x-2)=20x-10
(x+6)2=(7+x)2
4x2+2x=0
4x2+2x=0
x2-16x=-64
25x2-36=0
3x(2x+6)=12x+36
(6x-5)2=(2+5x)2
x2-3x=0
x2+x=0
x2+12x=-36
4x2-1=0
x(3x-1)=6x-2
(x+8)2=(10-5x)2
4x2+5x=0
x2-2x=0
x2-8x=-16
4x2-81=0
2x(4x+9)=16x+36
(x-9)2=(3-x)2
9x2-5x=0
7x2-4x=0
x2+10x=-25
49x2-81=0
3x(4x+3)=20x+15
(x+7)2=(9+x)2
3x2+2x=0
x2-x=0
x2-12x=-36
4x2-324=0
x(2x+2)=12x+12
(3x-9)2=(9-3x)2
4x2+4x=0
3x2+2x=0
x2-8x=-16
64x2-16=0
3x(4x-9)=20x-45
(x-9)2=(8+7x)2
x2-8x=0
x2+x=0
x2-14x=-49
36x2-4=0
3x(3x-3)=12x-12
(x-3)2=(5+4x)2
5x2+5x=0
8x2+x=0
x2-6x=-9
4x2-49=0
3x(2x+8)=
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