1.√2-2x²=(√2-2)x 2.4(x-1)²=2(x-1)用因式分解法解
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![1.√2-2x²=(√2-2)x 2.4(x-1)²=2(x-1)用因式分解法解](/uploads/image/z/1239842-2-2.jpg?t=1.%E2%88%9A2-2x%26%23178%3B%3D%EF%BC%88%E2%88%9A2-2%EF%BC%89x+2.4%EF%BC%88x-1%EF%BC%89%26%23178%3B%3D2%EF%BC%88x-1%EF%BC%89%E7%94%A8%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E6%B3%95%E8%A7%A3)
1.√2-2x²=(√2-2)x 2.4(x-1)²=2(x-1)用因式分解法解
1.√2-2x²=(√2-2)x 2.4(x-1)²=2(x-1)用因式分解法解
1.√2-2x²=(√2-2)x 2.4(x-1)²=2(x-1)用因式分解法解
√2-2x²=(√2-2)x
√2-2x²-(√2-2)x =0
√2-2x(X-1)=0
X1=0 X2=1
4(x-1)²=2(x-1)
4(x-1)²-2(x-1)=0
2(X-1)[2(X-1)-1]=0
2(X-1)(2X-3)=0
X1=1 X2=1.5