Question

A) Find the discriminant and determine the number of roots of each equation. Discriminant formula: b2 - 4ac

Answer 1

ax^2+ bx +x =0

3)

f(x)=-2x^2+6x-8

a= -2

b= 6

c= -8

Apply discriminant formula:

b^2-4ac

Replace:

6^2-4 (-2)-8

36-64

-28

Discriminant = -28

Since the discriminant is less than 0 it has 0 real roots. than