用因式分解法解下列方程 2(x-3)²+2(x²-1)=4x+1
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用因式分解法解下列方程 2(x-3)²+2(x²-1)=4x+1
用因式分解法解下列方程 2(x-3)²+2(x²-1)=4x+1
用因式分解法解下列方程 2(x-3)²+2(x²-1)=4x+1
2(x-3)²+2(x²-1)=4x+1
2(x²-6x+9)+2x²-2=4x+1
2x²-12x+18+2x²-3-4x=0
4x²-16x+15=0
(2x-3)(2x-5)=0
2x=3或2x=5
即:x=3/2或x=5/2