Question

How to use the discriminant to find out what type of solutions the equation has for `2x^2 - 9x + 3`?

Answer 1

y = 2x^2 - 9x + 3 = 0

`D = d^2 = 81 - 24 = 57 -> d = +-sqrt57`

There are 2 real roots (2 x-intercepts)

`x = 9/4 +- (sqrt57)/4`