Question

1)A discriminant of –17 indicates what type of roots?


A)Two Irrational
B)Two Complex
C)Two Rational
D)One Rational Double

2)The quadratic 2x2 + 6x + 3 has what type of roots?


A)Two Complex
B)Two Rational
C)One Rational Double
D)Two Irrational

3)The quadratic x2 + 20x + 100 has what type of roots?
A)Two Complex
B)One Rational Double
C)Two Rational
D)Two Irrational

Answer 1

2 complex roots

Answer 2

a. 2 complex rootsw

Answer 3

you need to evaluate the discriminant for each of these.
b^2-4ac=0 The roots are the same
b^2-4ac>0 Both roots are real numbers
b^2-4ac<0 Both roots are complex

Answer 4

For which one?