# Is y=(x-1)(x-2) a quadratic?

$y = \left(x - 1\right) \left(x - 2\right)$
$\textcolor{w h i t e}{\text{XXXXX}}$$y = {x}^{2} - 3 x + 2$
which is in the standard quadratic form $y = {a}^{2} + b x + c$
so $y = \left(x - 1\right) \left(x - 2\right)$ is a quadratic.