Question

(5x-4).(4x+6)=0

Answer 1

`(5x-4)(4x+6)=0`

`->5x-4=0` hoặc `4x+6=0`

`->x=4/5` hoặc `x=-3/2`

Answer 2

Ta có: \(\left(5x-4\right)\left(4x+6\right)=0\)

\(\Leftrightarrow\left[{}\begin{matrix}x=\dfrac{4}{5}\\x=-\dfrac{3}{2}\end{matrix}\right.\)