Question

(x-3).2x+1=x.(x+5) check whether it is a quadratic equation or not ​

Answer 1

Answer:

Given

$(x - 3) \times 2x + 1 = x \times (x + 5) \\ 2x {}^{2} - 6x + 1 = x {}^{2} + 5x \\ 2x {}^{2} - x {}^{2} - 6x - 5x + 1 = 0 \\ x {}^{2} - 11x + 1 = 0$

Here now the equation

$x {}^{2} - 11x + 1$

is in the form of

$ax {}^{2} + bx + c$

So

(x-3).2x+1=x.(x+5) is

a quadratic equation.