Question

Check whether (x+3)=2x(x-1) is a quadratic equation or non. ​

Answer 1

$(x + 3) = 2x(x - 1) \\ x + 3 = 2 {x}^{2} - 2x \\ 0 = 2 {x}^{2} - 2x - x - 3 \\ 2 {x}^{2} - 3x - 3 = 0$

Yes it is a quadratic equation