Bihar Police Constable Model Paper 5

Question : 22 of 100

Marks: +1, -0

If α and β are the roots of the equation

4x^2

– 32x + 63 = 0 then the value of α + β is:

Validate

Solution:

Given:
Our given quadratic equation is

4x^2

– 32x + 63 = 0
Concept used:
General quadratic equation in terms of roots is

x^2

– (α + β)x + αβ = 0
Calculation:
By comparing given quadratic equation with general quadratic equation, we get
(α + β) = 32/4 = 8
∴ The value of (α + β) is 8

Go to Question:

Prev Question

Next Question