①x²-6x-3=0 ②﹙x+1﹚²=﹙2x-1﹚²
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①x²-6x-3=0 ②﹙x+1﹚²=﹙2x-1﹚²
①x²-6x-3=0 ②﹙x+1﹚²=﹙2x-1﹚²
①x²-6x-3=0 ②﹙x+1﹚²=﹙2x-1﹚²
x²-6x=3
x²-6x+9=12
(x-3)²=12
x-3=±√12
x=3±2√3
(x+1)²=(2x-1)²
(x+1)²-(2x-1)²=0 【平方差公式分解】
(3x)(-x+2)=0
x(x-2)=0
x=0或x=2