Question

x^2-5/14x=0 tim x

Answer 1

x² - 5/14x = 0

<=> x² - 5x/4 = 0

<=> x( x - 5/4 ) = 0

<=> x = 0 hoặc x = 5/4

Answer 2

\(x^2-\frac{5}{14}x=0\)

\(x^2-\frac{5x}{14}=0\)

\(x\left(x-\frac{5}{14}\right)=0\)

\(\Rightarrow\orbr{\begin{cases}x=0\\x=\frac{5}{14}\end{cases}}\)

Answer 3

\(x^2-\frac{5}{14}x=0\)

\(x^2-\frac{5x}{14}=0\)

\(x-\left(x-\frac{5}{14}\right)=0\)

\(=>x=0\left(1\right)\)và \(x-\frac{5}{14}=0\left(2\right)\)

từ \(1=>x=0\)

từ \(2=>x=\frac{5}{14}\)

vậy \(x=0\)và   \(x=\frac{5}{14}\)

chúc bạn học tốt!