Question

Find the discriminant

Answer 1

`\bf \begin{array}{lcclll} 5q^2&-8q&+2\\ \uparrow &\uparrow &\uparrow \\ a&b&c \end{array}\qquad discriminant\implies \begin{array}{cllll} b^2-4ac\\\\ (-8)^2-4(5)(2) \end{array}`