一元二次方程200道计算题练习

一元二次方程200道计算题练习
一元二次方程200道计算题练习

一元二次方程200道计算题练习

1、)4(5)4(2+=+x x

2、x x 4)1(2=+

3、22)21()3(x x -=+

4、31022=-x x

5、(x+5)2=16

6、2(2x -1)-x (1-2x )=0

7、x 2 =64 8、5x 2 - 5

2=0 9、8(3 -x )2 –72=0 10、3x(x+2)=5(x+2) 11、(1-3y )2+2(3y -1)=0 12、x 2+ 2x + 3=0

13、x 2+ 6x -5=0 14、x 2-4x+ 3=0 15、x 2

-2x -1 =0

16、2x 2+3x+1=0 17、3x 2+2x -1 =0 18、5x 2-3x+2 =0

19、7x 2-4x -3 =0 20、 -x 2-x+12 =0 21、x 2-6x+9 =0 22、(3x+2)2=(2x-3)2 23、x 2-2x-4=0 24、x 2-3=4x

25、3x 2+8 x -3=0 26、(3x +2)(x +3)=x +14 27、(x+1)(x+8)=-12 28、2(x -3) 2=x 2-9 29、-3x 2+22x -24=0 30、(2x-1)2

+3(2x-1)+2=0 31、2x 2-9x +8=0 32、3(x-5)2

=x(5-x) 33、(x +2) 2=8x 34、(x -2) 2=(2x +3)2 35、2720x x += 36、24410t t -+=

37、()()24330x x x -+-= 38、2631350x x -+= 39、()2

231210x --=

40、2223650x x -+= 41. (x -2) 2=(2x-3)2 42.

43. 3(1)33x x x +=+ 44. x 2

45. ()()0165852=+---x x 46. 47. 4(x-3)2=25 48. 24)23(2=+x 49. 25220x x -+= 50. 51.

52. 01072=+-x x 53. -x 2+11x -24=0 54. 2x (x -3)=x -3.

55. 3x 2+5(2x+1)=0 56. (x +1) 2-3 (x +1)+2=0

57. 22(21)9(3)x x +=- 58. 59..

60. 21302x x ++= 61. 4

)2)(1(13)1(+-=-+x x x x 62. 2)2)(113(=--x x 63. x (x +1)-5x =0

.64. 3x (x -3) =2(x -1) (x +1). 65. (x+1)2﹣9=0.

042=-x x 51)12(2

12=-y 012632=--x x 2230x x --=

66. 4x 2﹣20=0. 67. (2x+3)2﹣25=0 68. 4(x+3)2=25(x ﹣2)2

69.(2x ﹣3)2=x 2 70. (x ﹣1)2=25. 71. 2x 2﹣24=0

72. x 2+4x+1=0. 73. (x ﹣2)2=25 74. 2x 2﹣3x ﹣4=0;

75. x 2﹣2x=2x+1 76. 2x 2+14x ﹣16=0 77. 9(x ﹣2)2﹣121=0

78. x 2﹣4x ﹣5=0 79. (x+3)2﹣2=0;

80. x 2﹣16=0; 81. x 2+3x ﹣4=0 82. x 2﹣3=0 83. x 2﹣3x=0.

84. 2x 2﹣=0; 85. 2x 2﹣4x+1=0 86, 2(x+3)2=x (x+3)

87. 3y 2+5(2y+1)=0 88. 9(x+1)2=4(x ﹣2)

2 89. (2x ﹣3)2=25. 89. 2(x ﹣1)2=32 90. 2(x ﹣3)2=x (x ﹣3)

91. 3x 2

﹣4x+1=0 92. x 2+5x+6=0 93. (x+1)2=2 94. x 2﹣2x ﹣3=0 95. (2﹣3x )2=1 96. 2x 2

=3(2x+1).

97. (2x ﹣1)2﹣9=0 98. x 2﹣x ﹣1=0. 99. (x+8)(x+1)=0 100. 2(x ﹣3)2=8

101. x (x+7)=0 102. x 2﹣5x+6=0 103. 3(x ﹣2)2=x (x ﹣2) 104. (y+2)2=(3y ﹣1)

2 105. x 2﹣9=0 106. x 2+4x ﹣1=0. 107. (x ﹣1)2

=4 108. x 2﹣4x+1=0 109. 3x 2+5(2x+1)=0 110. 3(x ﹣5)2=2(5﹣x ) 111. 9(2x ﹣5)2﹣4=0

112. 2x 2﹣x ﹣15=0 113. (2x ﹣3)2﹣121=0 114. (2x+3)2=x 2﹣6x+9

115. x 2+4x+2=0 116.. x 2﹣6x+9=(5﹣2x )

2 117. x 2﹣4x ﹣6=0 118. 4(x+1)2=9(x ﹣2)

2 119. (2x ﹣5)2=49 120. x 2+4x ﹣8=0

121. y 2=4 122. 4x 2﹣8=0; 123. x 2﹣4x ﹣1=0 124. x 2﹣3x ﹣7=0 125. )4(5)4(2+=+x x 126. x x 4)1(2=+

127. 22)21()3(x x -=+ 128. 31022=-x x 129. (x+5)2=16

130. 2(2x -1)-x (1-2x )=0 131. x 2 =64 132. 5x 2 - 5

2=0 133. 8(3 -x )2 –72=0 134. 3x(x+12)=5(x+12) 135. (1-3y )2+2(3y -1)=0 136. x 2+ 2x + 3=0 137. x 2+ 6x -5=0 138. x 2

-4x+ 3=0

139.. x 2-2x -1 =0 140. 2x 2+3x+1=0 141. 3x 2+2x -1 =0

142. 5x 2-3x+2 =0 143. 、7x 2-4x -3 =0 144. -x 2-x+12 =0

145. x 2-6x+8 =0 146. (x+1)

2-16=0 147. 25x 2+10x+1=0 148.(y+2)2=(3y-1) 2 149. 2x 2+x-1=0 150. x 2-2x-6=x-1

151. x 2+5=2(x+1) 152 ..2x 2-4x+6=0 153. 2x 2+4x-6=0

154. x 2+1=3x 155. (3x-2)2=(2x-3)2 156. x 2

-2x-4=0 157. x 2

-3=4x 158. 3x 2+8 x -3=0 159. (3x +2)(x +3)=x +24 160. (x+1)(x+8)=-12 161. 2(x -3) 2=x 2-9 162. -3x 2+22x -24=0 163. (2x+1)2

+3(2x+1)+2=0 164. (2x-1+2)(2x-1+1)=0

165. 2x(2x+1)=0 166. 2x 2-9x +8=0 167. 3(x-5)2=x(5-x) 168. (x +2) 2=8x 169. 3(x-5)+x(x-5)=0

170. (x -2) 2=(2x +3)2 171. 2720x x += 172. m 2

+2m-3=4m

173. ()()24330x x x -+-= 174. 6x 2?32x +60=0

175. (3?2x)2?121=0 176. 2223650x x -+=

177. (x -2) 2=(2x-3)2 178. 179. 3(1)33x x x +=+ 180. x 2

181.(x-3)2=(x-3)+2 182. 183.. 4(x-3)2=25 184. 24)23(2

=+x 185. y2+7y +6=0; 186. t(2t -1)=3(2t -1); 187.(2x -1)(x -1)=1. 188. 189. 190. 01072=+-x x

191. -3x 2+22x+24=0 192. 3x (x -3)=x -3 193. 3x 2+5(2x-1)=0

194. (x +2) 2-3 (x +2)+2=0 195. (x-3)(x+1)=0 196.

197. 3x (x -2) =2(x -1) 198. 3x =2(x -1) (x +1).

199. 3 (x +1)(x -2) =2(x -1) 200. 3x (x -2) =2(x -1) (x +1).

042=-x x 51)12(2

12=-y 012632=--x x

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