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教案备课库《初二年级数学同修学案201622005》真题及答案
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解方程x2－5x+6=0
解方程x2＋4x―2＝0
解方程x2－x－3=0
解方程解方程+=1.
解方程x2-4x-2=0
解方程x2﹣2x=0
解方程x2－4x＋1＝0
解方程xx﹣2+x﹣2=0.
解方程1x2＋x－12＝0
解方程x2﹣25=0
解方程x2+4x－2=0
解方程①x2﹣6x﹣4=0
解方程x2-5x-6=0
解方程x²－3x＋1=0.
解方程x²－2x－3=0
解方程x2－4x＋1=0
解方程x2－5x－6=0
解方程x²-2x-1＝0用配方法
设A是实矩阵证明ATAx=0与Ax=0是同解方程组
解方程.
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