(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2) 2x²+3x-18=0 3x²+2x-5=0 x²-4x-7=0.解一元二

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(x-1)(x-2)=0(2x-1)²=9x²-7x+6=0x(x-1)=x2x²-5x-12=02(x-1=(x-1)(x-2)=0(2x-1)²=9x

(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2) 2x²+3x-18=0 3x²+2x-5=0 x²-4x-7=0.解一元二
(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=
(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0
2(x-1=(x-1)(x-2) 2x²+3x-18=0 3x²+2x-5=0 x²-4x-7=0.解一元二次 麻烦拉

(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2)=0 (2x-1)²=9 x²-7x+6=0 x(x-1)=x 2x²-5x-12=0 2(x-1=(x-1)(x-2) 2x²+3x-18=0 3x²+2x-5=0 x²-4x-7=0.解一元二
1) x=1或2
2)化简得2x-1=±3 x=2或-1
3)因式分解(x-1)(x-6)=0 x=1或6
4)原式即x(x-2)=0 x=0或2
5)因式分解(x-4)(2x+3)=0 x=4或-3/2
6)化简后因式分解得(x-1)(x-4)=0 x=1或4
7)求根公式得x=(-3±根号153)/4
8)因式分解得(x-1)(3x+5)=0 x=1或-5/3
9)求根公式得x=2±根号11

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