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解方程. (1)x÷13=7 (2)4x﹣12=56 (3)x﹣x=5 (4)x:2.4=3:12
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用因式分解法解方程4x2x+1=32x+1
解方程x2+4x―2=0
解方程x2x﹣5=4x﹣10
下列是四个同学解方程2x﹣2﹣34x﹣1=9的过程其中正确的是
2x﹣4﹣12x+3=9
2x﹣4﹣12x﹣3=9
2x﹣4﹣12x+1=9
2x﹣2﹣12x+1=9
解方程x2+4x﹣1=0.
解方程x2+4x﹣1=0.
解方程x2-4x-2=0
不解方程判断下列方程根的情况4x2+1=3x
解方程2x2﹣4x=1用配方法
解方程4x3x-2=6x-4.
解方程1x2+4x﹣1=0.
用配方法解方程2x2-4x+1=0的根是
用配方法解方程x2+4x﹣1=0
1用公式法解方程x2﹣3x﹣7=0. 2解方程4x2x﹣1=32x﹣1
解方程去分母正确的是
2(x﹣1)﹣3(4x﹣1)=1
2x﹣1﹣12+x=1
2(x﹣1)﹣3(4﹣x)=6
2x﹣2﹣12﹣3x=6
解方程x2﹣4x﹣1=0
.解方程4x2-7x+2=0.
解方程x2﹣4x﹣1=0.
解方程x2+4x﹣7=6x+5.
解方程x2+4x−2=0
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