Find your Math Personality!
Find your Math Personality!
What is the value of the discriminant for the quadratic equation 0 = x + 2 + x2?
Solution:
A discriminant of a quadratic equation is a function of the coefficients of the polynomials.
The standard form is ax2 + bx + c = 0
where, a = coefficient of x2,
b = coefficient of x and
c = constant term.
We know that
Discriminant D = b2 - 4ac
D = (1)2 - 4 × (1) × (2)
D = 1 - 8
D = - 7 < 0
As the discriminant value is negative, the equation has no real roots.
Therefore, the value of the discriminant is -7.
What is the value of the discriminant for the quadratic equation 0 = x + 2 + x2 ?
Summary:
The value of the discriminant for the quadratic equation 0 = x + 2 + x2 is -7.
Math worksheets and
visual curriculum
visual curriculum