解方程:(1-3x)²+(2x-1)²=13(x-1)(x+1)
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解方程:(1-3x)²+(2x-1)²=13(x-1)(x+1)
解方程:(1-3x)²+(2x-1)²=13(x-1)(x+1)
解方程:(1-3x)²+(2x-1)²=13(x-1)(x+1)
1-6x+9x²+4x²-4x+1=13x²-13
2-10x=-13
10x=15
x=3/2