Question

18. If roots of a quadratic equation are same then Discriminant =​

Answer 1

Answer:

Step-by-step explanation:

For the quadratic equation ax2 + bx + c =0, a ≠ 0; the expression b2 - 4ac is called discriminant and is, in general, denoted by the letter 'D'. When a quadratic equation has two real and equal roots we say that the equation has only one real solution

Answer 2

Answer:

If roots of a quadratic equation are same then Discriminant is

(Δ) => b² - 4ac = 0

• where, b is coefficient of x
• where, a is coefficient of x²
• where, c is constant

I hope this helps you!