Question

tìm x thuộc z,biết

x/4=18/x+1

Answer 1

\(\frac{x}{4}=\frac{18}{x+1}\Leftrightarrow x\left(x+1\right)=4.18=72\)

\(x\left(x+1\right)=72=8.\left(8+1\right)=-9.\left(-9+1\right)\)

\(Vậy\) \(x\in\left\{-9;8\right\}\)

Answer 2

x/4=18/x+1

=>x.(x+1)=18.4

=>x.(x+1)=72

ma x va x+1 la 2 so nguyen lien tiep

=>x=8

Answer 3

x=8 hoặc x=-9 nhớ l i k e cho mình nha

Answer 4

x=8 hoặc -9 nhé