Question

Determine the number and type of solutions for 0 = x2 + 3x + 1.

1 Rational Double
2 Irrational
2 Rational
2 Complex

Answer 1

Do you know the discriminant formula?

Answer 2

No

Answer 3

The discriminant formula is

D = b^2 - 4ac

Answer 4

In this case, a = 1, b = 3 and c = 1

Answer 5

So

D = b^2 - 4ac

D = 3^2 - 4(1)(1)

...

Keep going to find D