Question

Giúp em câu này nữa ạ ;-;

Answer 1

\(\dfrac{x+50}{49}+\dfrac{x+2}{48}+\dfrac{x+50}{47}=-1\)

\(\dfrac{x+50}{49}+\left(\dfrac{x+2}{48}+1\right)+\dfrac{x+50}{47}=0\)

\(\dfrac{x+50}{49}+\dfrac{x+50}{48}+\dfrac{x+50}{47}=0\)

\(\left(x+50\right)\left(\dfrac{1}{49}+\dfrac{1}{48}+\dfrac{1}{47}\right)=0\)

\(\Leftrightarrow x=-50\)  Vì \(\left(\dfrac{1}{49}+\dfrac{1}{48}+\dfrac{1}{47}\right)>0\)