Question

Use the quadratic equation y = x2 + 3x – 10.

Calculate the discriminant to determine the number of real roots.
(Points : 5)
A. one real root
B. two real roots
C.no real roots
D.no solution to the equation

Answer 1

I think its B.

Answer 2

\[\large Ax^2 + Bx + C\]

Quadratic formula \[\large \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\]

The discriminant is this part:
\[\large b^2 - 4ac\]

If the result is > 0 we have 2 real roots.
if the result = 0 we have 1 real root
if the result < 0 we have 2 complex roots

Answer 3

Awesome Thanks so much man

Answer 4

No problem man