Question

Check whether the following is Quadratic equations:
${\left(x+1\right)}^2=2\left(x-3\right)$

Answer 1

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

$\Rightarrow x^2+2x+1-2x+6=0$

$\Rightarrow x^2+7=0$ is a quadratic equation where degree of $x$ is $2$