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解方程:4(2x-1)2-9=0
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教案备课库《初二年级数学同修学案201622080》真题及答案
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解方程4x-3=2x-1
解方程x2-4x+1=0
解方程4-21-x=-2x
解方程x2+4x﹣1=0.
.解方程2x2﹣4x+1=0.
解方程x+22+x-4x+4=2x-1x+4
解方程x2-4x+1=0
解方程x2-4x-1=0.
解方程93x+12=4x﹣12.
解方程1x2+4x﹣1=0.
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x2﹣4x﹣1=0
解方程x+2x﹣4=1.
解方程.
解方程x2-4x+1=0
解方程x2﹣4x﹣1=0.
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
解方程x﹣1x﹣2=x+3x﹣4+20.
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
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