Find the roots of `x^2-3x-108=0`

Find the roots of x^2+3x-4=0 is

Find the roots of 4x^2+3x+5=0 by the method of completing the square.

Find the roots of 3x^(2) - 5x - 12 = 0 .

Find the equation whose roots are equal but opposite in sign to the roots of 2x^(2)+3x+4=0 .

If alpha ,beta and gamma are the roots of x^3-2x^2+3x-4 =0 , then find sumalpha^2beta^2

If alpha, beta are the roots of x^(2) - 3x + a = 0 , a in R and lt 1 lt beta, then find the values of a

Find the roots of x^4-16x^3+86x^2-176x+105=0

Find the equation whose roots are 3 times the roots of x^3 +2x^2 -4x +1=0

Find roots equation 2x^(2)-x-3=0 .

if alpha , beta be roots of x^2-3x+a=0 and gamma , delta are roots of x^2-12x+b=0 and alpha,beta,gamma,delta (in order) form a increasing GP then find the value of a & b