Question

5x(x-1)-3(1-x)=0

Trả lời giúp mk nha.....mk đang cần đáp án gấp

Answer 1

\(5x\left(x-1\right)-3\left(1-x\right)=0\)

\(5x\left(x-1\right)+3\left(x-1\right)=0\)

\(\left(5x+3\right)\left(x-1\right)=0\)

\(\Leftrightarrow\left[{}\begin{matrix}5x+3=0\\x-1=0\end{matrix}\right.\)

\(\Leftrightarrow\left[{}\begin{matrix}x=-\dfrac{3}{5}\\x=1\end{matrix}\right.\)

Vậy...

Answer 2

\(5x\left(x-1\right)-3\left(1-x\right)=0\)

<=> \(5x\left(x-1\right)+3\left(x-1\right)=0\)

<=> \(\left(x-1\right)\left(5x+3\right)=0\)

<=> \(\left[{}\begin{matrix}x-1=0\\5x+3=0\end{matrix}\right.\)

<=> \(\left[{}\begin{matrix}x=1\\x=\dfrac{3}{5}\end{matrix}\right.\)

Vậy \(\left[{}\begin{matrix}x=1\\x=\dfrac{3}{5}\end{matrix}\right.\)