Question

find the value of discriminant for the quadratic equation x² + 7x + 6 = 0

Answer 1

D=b^2 - 4ac
49-4(6×1)
49-24
25
D=25

Answer 2

The value of discriminant for the given quadratic equation is 25

Given:

Quadratic equation x² + 7x + 6 = 0

To find:

The value of discriminant for the given quadratic equation

Solution:

As we know standard form of a Quadratic equation is ax²+bx+c = 0

Compare given Quadratic equation x² + 7x + 6 = 0 with standard form

⇒ a = 1, b = 7 and c = 6

The formula for discriminant of ax²+bx+c = 0 is given by

⇒ Δ = b²- 4ac  

⇒ The value of discriminant for the x² + 7x + 6 = 0  

⇒ Δ = 7² - 4(1)(6)  =  49 - 24 = 25

The value of discriminant for the given quadratic equation is 25

#SPJ2