Question

1. Check whether the following are quadratic equations
${x + 1}^{2} = 2(x - 3)$
​

Answer 1

$x + 1 {}^{2} = 2(x - 3) \\ x + 1 = 2x - 6 \\ 2x - x - 6 - 1 = 0 \\ x - 7 = 0$

since it is not of the form

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

therefore it is not a quadratic equations

if it is helpful thank me