Question

A quadratic equation has exactly one real number solution. Which is the value of its discriminant?

−1

0

1

2

Answer 1

the answer is 0

Explanation:

Answer 2

Answer: 0

Explanation:

We know that if the number of real solutions the quadratic equation depends on the discriminant:-

• If d = 0, then equation will have exactly one real number solution .
• If d > 0 then equation will have exactly two real number solutions.
• If d < 0 then the quadratic equation will have no real solutions. There will be two complex number solutions.

Therefore, if a quadratic equation has exactly one real number solution.

Then, the value of its discriminant= 0.