Question

(3x-2) (4x+5) = 0

Answer 1

=>3x-2=0 hoặc 4x+5=0

=>x=2/3 hoặc x=-5/4

Answer 2

\(\left(3x-2\right)\left(4x+5\right)=0\)

\(\Leftrightarrow\left[{}\begin{matrix}3x-2=0\\4x+5=0\end{matrix}\right.\)

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