In equation `x^4-2x^3+4x^2+6x-21=0` if two its roots are equal in magnitude but opposite e in find the roots.

if the equation 8^(4)-2x^(3)-27x^(2)+6x+9=0 have the roots alpha and beta equal in magnitudes but opposite in sign then 4r^(2)+s^(2)=( where r and s are other roots,r>s)

The value of m for which the equation x^(3)-mx^(2)+3x-2=0 has two roots equal rea magnitude but opposite in sign,is

Equation (a+5)x^2-(2a+1)x+(a-1)=0 will have roots equal in magnitude but opposite in sign if a=

If two roots of the equation x^(3)-px^(2)+qx-r=0 are equal in magnitude but opposite in sign,then:

Let 4x^(2)-4(alpha-2)x + alpha-2=0(alpha in R) be a quadratic equation. Find the values of alpha for which Both the roots are equal in magnitude but opposite in sign

If two roots of x ^(3) -ax ^(2) + bx -c =0 are equal in magnitude but opposite in sign. Then: