2/ x+1 – 1/ x-2 = 3x-11/(x+1)*(x-2) giải hộ mk nha mn 14/11/2021 Bởi Charlie 2/ x+1 – 1/ x-2 = 3x-11/(x+1)*(x-2) giải hộ mk nha mn
$\frac{2}{x+1}-\frac{1}{x-2}=\frac{3x-11}{(x+1)(x-2)}$ $Đkxđ:x\neq-1,x\neq2$ $⇒2x-4-x-1=3x-11$ $⇔-2x=-6$ $⇔x=3$ $(tm$ $đkxđ)$ Vậy $S=${$3$}. Bình luận
$\frac{2}{x+1}-\frac{1}{x-2}=\frac{3x-11}{(x+1)(x-2)}$ $Đkxđ:x\neq-1,x\neq2$
$⇒2x-4-x-1=3x-11$
$⇔-2x=-6$
$⇔x=3$ $(tm$ $đkxđ)$
Vậy $S=${$3$}.