Question

[nguyễn quang anh]

a)15x^2 -3x=0
b)(3x -2)(x +3)+(x^2 -9)=0
c)(x -1)^3 -(x +1)(2 -3x)=0

Answer 1

[Nguyễn Lê Phước Thịnh]

a: \(\Leftrightarrow3x\left(5x-1\right)=0\)

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