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(752)配方法解一元二次方程专项练习111题(有答案)16页 ok.doc

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(752)配方法解一元二次方程专项练习111题(有答案)16页 ok.doc

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(752)配方法解一元二次方程专项练习111题(有答案)16页 ok.doc

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文档介绍:配方法解一元二次方程专项练****br/> 1.x2﹣2x=4.
 
2.3x2=5x+2
 
3.2x2﹣4x+1=0.
 
4. x2+2x=2;
 
5.x2﹣2x﹣4=0.
 
6..
 
7.x2+4x﹣1=0.
 
8.2x2+x﹣30=0
 
9.x2﹣28x﹣4=0
 
10.x2﹣8x﹣1=0.
 
11.x2+2x=5.
 
12.2x2+6=7x 
13.2x2+1=8x
 
14.3x2﹣2x﹣6=0
 
15..
 
16.x2+2x﹣15=0.
 
17.x2+6x﹣16=0
 
18.2x2﹣5x﹣3=0     
 
19.x2﹣4x+2=0
 
20.(x+3)(x﹣1)=12
 
21.2x2﹣12x+6=0
 
22.2x2﹣3x﹣2=0.
 
23.x(x+2)﹣5=0.
 
24.x2﹣6x+2=0
 
25.3x2﹣6x﹣1=0
 
26.2x2+4x﹣1=0
 
27.x2﹣4x+3=0.
 
28.x2﹣6x﹣3=0
 
29.2x2﹣8x+3=0.
 
30.3x2﹣4x+1=0;
31.x2﹣6x+1=0.
32.2x2﹣4x+1=0
33.x2+5x﹣3=0.
34.x2+2x﹣4=0
35.2x2﹣4x+1=0.
36..
37.5(x2+17)=6(x2+2x)
38.4x2﹣8x+1=0
39.2x2+1=3x.
40.x2+x﹣2=0.
41.x2﹣6x+1=0
42.x2﹣8x+5=0
43.x2+3x﹣4=0.
44.3x2+8x﹣3=0
45.x2+8x=2.
46.x2+3x+1=0
47. 2x2﹣3x+1=0
48.x2﹣4x﹣6=0
49. x2﹣8x+1=0
50.x2+4x+1=0
51.x2﹣4x+1=0
52.x2﹣6x﹣7=0
54. x2﹣6x﹣5=0.
55.2x2+1=3x
56. x2+3x+1=0
57.x2﹣8x+1=0.
58. x2﹣8x﹣16=0
59..
 
60.6x2﹣7x﹣3=0
61. x2﹣6x=﹣8;
62. 2x2﹣5x+1=0.
63.3x2+8x﹣3=0
64.3x2﹣4x+1=0
65.2x2+3x﹣1=0.
 
66.2x2﹣5x﹣1=0
 
67.4x2﹣8x﹣1=0
68.3x2+4x﹣7=0
69.3移项得3x2﹣10x=﹣6.
 
70.3x2﹣10x﹣5=0
71.2x2+3=7x
72.x2+2x﹣224=0
73.x2﹣5x﹣14=0 
74..
75.x2+8x﹣20=0
76.x2﹣x+.
77.2t2﹣6t+3=0.
78.3x2﹣6x﹣12=0.
79.x2﹣4x+1=0

80. 3x2﹣3=2x.
81.2x2﹣5x+1=0.
82.2y2+8y﹣1=0
83.x2﹣6x﹣18=0
﹣2x﹣1=0.
85. x2﹣4x﹣1=0;
86. 2x2+3x+1=0.
87.2x2﹣6x﹣7=0
88.ax2+bx+c=0(a≠0).
89.4x2﹣4ax+a2﹣b2=0.
90. x2﹣4x﹣2=0
91. x(x+4)=6x+12
92. 2x2+7x﹣4=0
93. 3(x﹣1)(x+2)=x+4
94. 3x2﹣6x=8
95. 2x2﹣x﹣30=0,
96. x2+2=2x,
+px+q=O(p2﹣4q≥O),
98. m2x2﹣28=3mx(m≠O),
99. x2﹣6x+7=0;
100. 2x2+6=7x;
101. ﹣5x2+10x+15=0.
102. x2+6x+8=0;
103. x2=6x+16;
+3=7x;
105. (2x﹣1)(x+3)=4.
106. x2+4x=﹣3;
107. 2x2+x=0.
x2+4x﹣3=0;

x2+3x﹣2=0;
110.