Question

find the discriminant for x^2+4x+20=0. the roots are... find the discriminant for x^2+4x+20=0. the roots are... @Mathematics

Answer 1

for ax^2+bx+c=0
the disc is b^2-4ac

Answer 2

=16-80=-64
roots are complex

Answer 3

If D greater than or equal to 0 the roots are real

If D less than 0 the roots are not real

If D=0 the roots are equal

If D is a perfect square, the roots are rational

Answer 4

where did you get the a,b, and c from?

Answer 5

a=coefficient of x^2
b=coeff of x
c=constant

Answer 6

x^2 + 4x + 20 = 0

a = 1 b = 4 c =20