la B25. If , .y are the roots of r + ar? +b=0 then the value of B T al is2) a²-364) a? - 36

25. If a, B. y are the roots of x + ax? +b=0 then the value of By al is2) a²-363a

5. Ir a..y are the roots oftax+b=0 then the valueo2) 0-36

If a-b,b-c are the roots of ax^(2)+bx+c=0 then the value of ((a-b)(b-c))/(c-a) ,is

If a and b ( != 0) are roots of x^(2) +ax + b = 0 , then the least value of x^(2) +ax + b ( x in R) is :

If a and b(!=0) are the roots of the equation x^2+ax+b=0 then the least value of x^2+ax+b is

If a,b,c are the roots of the equation 7x^3-25x+42=0 then the value of the expression (a+b)^3+(b+c)^3+(c+a)^3 is