The formula to finding a discriminant would be b^2-4ac, the b value of this trinomial being -5, the a value being 2, the c value being 3. Then, you plug the values in the equation and solve: (-5)^2-4(2)(3) This would simplify to 1, meaning there are two solutions since the discriminant value is positive. If it is 0, there is one solution, if it is negative, then there are no real solutions.
As there is a 60% Increase in the attendance..60% more ppl would attend than last year..so this year's attendance would be 750 + 60% of 750 ..750 + 450 ..1200 people. :-)