Question

[Lâm Kiến Chi]

Tìm x:

13x-2/2x+5 = -27/5-x

Giúp mik câu này nha!!!

Cám ơn các bạn nhìu!

Answer 1

[Nguyễn Huy Tú]

\(\frac{13x-2}{2x+5}=-\frac{27}{5-x}\)ĐK : \(x\ne-\frac{5}{2};5\)

\(\Rightarrow\left(13x-2\right)\left(5-x\right)=-27\left(2x+5\right)\)

\(\Leftrightarrow65x-13x^2-10+2x=-54x-135\)

\(\Leftrightarrow-13x^2+121x+125=0\Leftrightarrow x=10,24...;x=-0,93...\)