吧x1x2-x1-x2=1分解成()()=a的形式x1+x2-x1x2=2 x1x2+x1+x2=6x1x2-x1-x2=3x1+x2-2x1x2=3急!
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吧x1x2-x1-x2=1分解成()()=a的形式x1+x2-x1x2=2 x1x2+x1+x2=6x1x2-x1-x2=3x1+x2-2x1x2=3急!
吧x1x2-x1-x2=1分解成()()=a的形式
x1+x2-x1x2=2
x1x2+x1+x2=6
x1x2-x1-x2=3
x1+x2-2x1x2=3
急!
吧x1x2-x1-x2=1分解成()()=a的形式x1+x2-x1x2=2 x1x2+x1+x2=6x1x2-x1-x2=3x1+x2-2x1x2=3急!
x1x2-x1-x2=1
(x1-1)(x2-1)=2
x1+x2-x1x2=2
(x1-1)(x2-1)=-1
x1x2+x1+x2=6
(x1+1)(x2+1)=7
x1x2-x1-x2=3
(x1-1)(x2-1)=4
x1+x2-2x1x2=3
(2x1-1)(x2-1/2)=7/2
x1x2-x1-x2=1
(x1-1)(x2-1)=2
x1+x2-x1x2=2
x1x2-x1-x2=-2
(x1-1)(x2-1)=-1
x1x2+x1+x2=6
(x1+1)(x2+1)=7
x1x2-x1-x2=3
(x1-1)(x2-1)=4
x1+x2-2x1x2=3
(x1-1/2)(-2x2+1)=5/2
吧x1x2-x1-x2=1分解成()()=a的形式x1+x2-x1x2=2 x1x2+x1+x2=6x1x2-x1-x2=3x1+x2-2x1x2=3急!
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