Question

Check if (2x-1) (x-3)=(x+5)(x-1) is a quadratic equation

Answer 1

$(2x-1)(x-3)=(x+5)(x-1)\\2x^2-6x-x+3=x^2-x+5x-5\\2x^2-7x+3=x^2-4x-5\\2x^2-x^2-7x+4x+3+5=0\\x^23x+8=0$

Hence, it is in the form of

ax+by+c=0

Therefore, it is a Quadratic Equation.

Hope it will help you