Let alpha and beta be the roots of the e...

Let `alpha and beta` be the roots of the equation `px^(2) + qx + r=0`. If `p, q, r` in AP and `alpha+beta =4`, then `alpha beta` is equal to

A

`-9`

B

`9`

C

`-5`

D

`5`

Verified by Experts

The correct Answer is:

A

Similar Questions

Explore conceptually related problems

If alpha and beta are the roots of the equation x ^(2) + alpha x + beta = 0, then

If alpha and beta are the roots of the equation x ^(2) + 3x - 4 = 0 , then (1)/(alpha ) + (1)/(beta) is equal to

If alpha and beta are the roots of the equation ax^(2)+bx+c=0, alphabeta=3 and a,b,c are in AP, then alpha+beta is equal to a)-4 b)1 c)4 d)-2

If alpha and beta are the roots of the equations x^(2) - 6x +a=0 and satisfy the relations 3 alpha + 2 beta= 16 , then the value of a is :

If the roots of the equation x ^(2) + 2 bx + c =0 are alpha and beta, then b ^(2) - c is equal to

If alpha and beta are the roots of 4x^(2) + 2x - 1 = 0 , then beta is equal to