# How do you find the roots, real and imaginary, of #y=-5x^2 +40x -34 # using the quadratic formula?

##### 1 Answer

Jan 26, 2016

#### Explanation:

The quadratic formula is

with a=-5, b=40 and c=-34 for this particular equation

As 920 is not a perfect square, you can symplify the expression in several ways