If one root of quadratic equation `ax^(2)+bx+c=0` is `2+i` Then the value of `(a,b,c)` is

One of the two real roots of the quadratic equation ax^(2)+bx+c=0 is three xx the other Then the value of b^(2)-4ac equals

If alpha, beta be the roots of quadratic equation ax^(2)+bx+c=0 , then find the value of (a alpha^(2)+c)/(a alpha+b)+(a beta^(2)+c)/(a beta+b) ?

The quadratic equation ax^(2)+bx+c=0 has real roots if:

If sum of the roots of the quadratic equation,ax^(2)+bx+c=0 is 12, then the sum of the roots of the equation,a(x+1)^(2)+b(x+1)+c=0 is: a.9 b.10 c. 12d.14

If one root of the euation ax^(2)+bx+c=0 is 3-4i, then a+b+c=

If one root of the quadratic equation ax^(2) + bx + c = 0 is 15 + 2sqrt(56) and a,b and c are rational, then find the quadratic equation.

Determine the condition for one root of the quadratic equation ax^(2) +bx + c = 0 to be thrice the other .