Home
Class 11
MATHS
If the two equations x^(2)-cx +d=0 and x...

If the two equations `x^(2)-cx +d=0 and x^(2)-ax+b=0` have one common root and the second has equal roots, then `2(b+d)`=

A

ac

B

`-ac`

C

0

D

`a+c`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

If the equations x^(2) + ax+1=0 and x^(2)-x-a=0 have a real common root b, then the value of b is equal to

The equations x^( 5) + ax + 1 = 0 and x^( 6) + ax^(2) + 1 = 0 have a common root. Then a is equal to

For a ne b, if the equation x ^(2) + ax + b =0 and x ^(2) + bx + a =0 have a common root, then the value of a + b equals to:

If the equations 2x^(2)+alpha x + alpha= 0 and x^(2)+2x+2 alpha= 0 have a common root, then find the real values of alpha .

If the equations x^(2)+ax+bc=0 and x^(2)+bx+ca=0 have a common root and if a, b and c are non-zero distinct real numbers, then their other roots satisfy the equation