Question

(x-3 phần4)nhân(4+3x)=0 có kết quả bằng bao nhiêu ạ

Answer 1

`(x-3/4)(4+3x)+0`

`<=>` \(\left[ \begin{array}{l}x-\dfrac34=0\\3x+4=0\end{array} \right.\) 

`<=>` \(\left[ \begin{array}{l}x=\dfrac34\\3x=-4\end{array} \right.\) 

`<=>` \(\left[ \begin{array}{l}x=\dfrac34\\x=-\dfrac43\end{array} \right.\) 

Vậy `x=3/4` hoặc `x=-4/3`

Answer 2

Ta có: \(\left(x-\dfrac{3}{4}\right)\left(3x+4\right)=0\)

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