因式分解 X(2X-1)=4x-2
因式分解
1.X(2X-1)=4x-2
2.(X-4)∧2-(5-2X)∧2=0
3.3X(X+1)=2X+2
人气:250 ℃ 时间:2020-03-12 12:15:40
解答
1.X(2X-1)=4x-22x^2-x=4x-22x^2-5x+2=0(2x-1)(x-2)=0x=1/2 or x=22.(X-4)∧2-(5-2X)∧2=0(x^2-8x+16)-(25-20x+4x^2)=0-3x^2+12x-9=0(x-3)(x-1)=0x=3 or x=13.3X(X+1)=2X+23x^2+3x=2x+23x^2+x-2=0(x+1)(3x-2)=0x=-1...
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