一元二次方程200道计算题练习

1、60.元二次方程200道计算题练习1、(x+4)2=5(x+4)2、(x1)24x3、(x3)2(1，2x)24、2x2一10 x=35、(x+5)2=166、2(2x1)x(12x)=07、x2=6428、5x2-5=09、8(3-x)2-72=010、3x(x+2)=5(x+2)11、(13y)2+2(3y1)=012、x2+2x+3=013、x2+6x5=014、x24x+3=015、x22x1=016、2x2+3x+1=017、3x2+2x1=018、5x23x+2=019、7x24x3=020、-x2-x+12=021、x26x+9=022、(3x+2)2=(2x-3)223、x2-

2、2x-4=024、x2-3=4x25、3x2+8x3=026、(3x+2)(x+3)=x+1427、(x+1)(x+8)=-1228、2(x3)2=x2929、3x2+22x24=030、(2x-1)2+3(2x-1)+2=031、2x29x+8=032、3(x-5)2=x(5-x)33、(x+2)2=8x34、(x2)2=(2x+3)235、7x22x036、4t2一4t1037、4(x3x(x3038、6x2一31x35039、(2x-3匕-121040、2x2一23x65041.(x2)2=(2x-3)242.x2-4x0433x(x1)3x344.x2-2p3x+3=045.(x-5-

3、8(x-5160112(2y1)2-46.2547.4(x-3)2=2548.(3x2)22449.x252x20503x26x12051.+1=52.x27x10053.x2+11x24=054.2x(x3)=x3.55.3x2+5(2x+1)=056.(x+1)23(x+1)+2=057.(2x1)29(x一3)258.x2-2x-3059.2xa-5x-7=061.乜也-1=(x-1)(x2)362.(3x11)(x2)二263.x（x1）5x=0.64.3x(x3)=2(x1)(x+1).65.(x+1)2-9=0.130.2(2x1)x(12x)=0131.x2=64132.5x2-

4、|=0133.8(3-x)272=0134.3x(x+12)=5(x+12)135.(13y)2+2(3y1)=0 x2+2x+3=0 x2+6x5=0 x24x+3=066.4x2-20=067.(2x+3)2-25=068.4(x+3)2=25(x-2)269.(2x-3)2=x270.(x-1)2=2571.2x2-24=072.x2+4x+1=073.(x-2)2=2574.2x2-3x-4=0；75.x2-2x=2x+176.2x2+14x-16=077.9(x-2)2-121=078.x2-4x-5=079.言(x+3)2-2=0；80.x2-16=0；81.x2+3x-4=082

5、.x2-3=083.x2-3x=0.84.2x2-丄=0；285.2x2-4x+l=086,2(x+3)2=x(x+3)87.3y2+5(2y+1)=088.9(x+1)2=4(x-2)289.(2x-3)2=2589.2(x-1)2=3290.2(x-3)2=x(x-3)91.3x2-4x+1=092.x2+5x+6=093.(x+1)2=294.x2-2x-3=095.(2-3x)2=196.2x2=3(2x+1)97.(2x-1)2-9=098.x2-x-1=099.(x+8)(x+1)=0100.2(x-3)2=8101.x(x+7)=0102.x2-5x+6=0103.3(x-2)2

6、=x(x-2)104.(y+2)2=(3y-1)2105.x2-9=0106.x2+4x-1=0107.(x-1)2=4108.x2-4x+1=0109.3x2+5(2x+1)=0110.3(x-5)2=2(5-x)111.9(2x-5)2-4=0112.2x2-x-15=0113.(2x-3)2-121=0114.(2x+3)2=x2-6x+9115.x2+4x+2=0116.x2-6x+9=(5-2x)2117.x2-4x-6=0118.4(x+1)2=9x-2)2119.(2x-5)2=49120.x2+4x-8=0121.y2=4122.4x2-8=0；123.x2-4x-1=0124

7、.x2-3x-7=0125.(x4)2=5(x4)126.(x1)2=4x129.(x+5)2=16127.(x3)2=(1，2x)2128.2x2一10 x二3139.x22x1=0140.2x2+3x+1=0141.3x2+2x1=0142.5x23x+2=0143.、7x24x3=0144.-x2-x+12=0145.x26x+8=0146.(x+1)216=0148.(y+2)2=(3y-1)2151.x2+5=2(x+1)154.x2+1=3x157.x2-3=4x158.3x2+8x3=0150.x2-2x-6=x-1153.2x2+4x-6=0156.x2-2x-4=0159.(

8、3x+2)(x+3)=x+24147.25x2+10 x+1=0149.2x2+x-1=0152.2x2-4x+6=0155.(3x-2)2=(2x-3)2162.160.(x+1)(x+8)=-12161.2(x3)2=x29163.(2x+1)2+3(2x+1)+2=0164.(2x-1+2)(2x-1+1)=0165.2x(2x+1)=0166.2x29x+8=0167.3(x-5)2=x(5-x)168.(x+2)2=8x169.3(x-5)+x(x-5)=0170.(x2)2=(2x+3)2171.7x2+2x=0172.m2+2m-3=4m173.174.6x232+60=0175.(32x)2121176.2x2一23x+65=0177.(x2)2=(2x-3)2178.x24x=0179.3x(x1)=3x3180.x2-4x+12=0181.(x-3)2=(x-3)+2182.2(2y-1)2183.4(x-3)2=25184.(3x+2)2=24185.y2+7y+6=0；186.t(2t1)=3(2t1)；187.(2x1)(x1)=1188.3x26x12=0189.2x3+1=190.x27x+10二0191.3x2+22x+24=0192.3x(x3)=x31