Question

tìm x

5x(x-2018)-x+2018=0

mk cần gấp, giải ra chi tiết giúp mình nha

Answer 1

\(5x\left(x-2018\right)-x+2018=0\)

\(5x\left(x-2018\right)-\left(x-2018\right)=0\)

\(\left(x-2018\right)\left(5x-1\right)=0\)

\(\Rightarrow\orbr{\begin{cases}x-2018=0\\5x-1=0\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=2018\\x=\frac{1}{5}\end{cases}}\)

Vậy.........

Answer 2

x = 2018

x = 1/5

t i c k nha

Answer 3

\(5x\left(x-2018\right)-x+2018=0\)

\(\Leftrightarrow5x\left(x-2018\right)-\left(x-2018\right)=0\)

\(\Leftrightarrow\left(x-2018\right)\left(5x-1\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x-2018=0\\5x-1=0\end{cases}}\)

\(\Leftrightarrow\orbr{\begin{cases}x=2018\\x=\frac{1}{5}\end{cases}}\)