Question

Check whether the following is a quadratic equation or not.

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

Answer 1

Given the equation is

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

or, $x^2+2x+1=2x-6$

or, $x^2+7=0$.

This is of the form $a{x}^2+bx+c=0$ with $a\ne 0$.

So this is a quadratic equation.