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解方程(1)(2)(3)(4)(5)(6)
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教案备课库《可化为一元一次方程的分式方程(1)》真题及答案
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解方程x2-3x+5+6x2-3x=0
用代入法解方程组时将方程①代入②中所得的方程正确的是.
3x+4y-3=8
3x+4x-6=8
3x-2x-3=8
3x+2x-6=8
解方程去分母正确的是
2(2x+1)-3(5x-3)=1
4x+1-15x-3=6
2(2x+1)-3(5x-3)=6
2x+1-5x-3=6
解方程2x+1/3-5x-1/6=1
解方程.
用适当的方法解方程5x3﹣2x=4x﹣6.
解方程4x3x-2=6x-4.
阅读下面的解题过程解方程|x+3|=2.解当x+3≥0时原方程可化成为x+3=2解得x=-1经检验x
我们规定若关于x的一元一次方程ax=b的解为b﹣a则称该方程为差解方程例如2x=4的解为2且2=4﹣
解方程3x﹣42x+5=x+4
解方程.
四位同学解方程﹣=1下面是他们解方程中去分母的一步其中正确的是
1﹣(x﹣3)=1
3﹣2(x﹣3)=6
2﹣3(x﹣3)=6
3﹣2(x﹣3)=1
下列解方程的过程中正确的是
x
2
=-2,解方程,得x=±
(x-2)
2
=4,解方程,得x-2=2,x=4
4(x-1)
2
=9,解方程,得4(x-1)=±3,x
1
=
,x
2
=
(2x+3)
2
=25,解方程,得2x+3=±5,x
1
=1,x
2
=-4
理解同解方程的定义再解题1同解方程的定义为如果两个方程的解相同那么这两个方程叫同解方程反之如果两个方
用配方法解方程x2﹣4x﹣5=0时原方程应变形为
(x+1)
2
=6
(x+2)
2
=9
(x﹣1)
2
=6
(x﹣2)
2
=9
马虎与粗心两位同学解方程组时马虎看错了m解方程组得粗心看错了n解方程组得试求:1常数mn的值;2原方
阅读材料为解方程x2-12-5x2-1+4=0我们可以将x2-1看作一个整体然后设x2-1=y①那么
用配方法解方程x2﹣4x﹣5=0时原方程应变形为
(x+1)
2
=6
(x+2)
2
=9
(x﹣1)
2
=6
(x﹣2)
2
=9
阅读下面的解题过程解方程4x-12-104x-1+24=0解把4x-1视为一个整体设4x-1=y则原
解方程5x﹣12﹣2x+32=x﹣23x+6﹣12x.
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