Question

2道初二 分式方程 求高手解答 在线等

Answer 1

1.2x/(x-3)-1/(x+3)=2

2x(x+3)-(x-3)=2(x^2-9)

2x^2+6x-x+3=2x^2-18

5x=-21 x=-21/5

2.1/(1-x)-2=(3x+2x^2)/(1-x^2)

1+x-2(1-x^2)=3x+2x^2

1+x-2+2x^2=3x+2x^2

x=-1/2