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

The value of alpha for which the equation (alpha+5)x^(2)-(2 alpha+1)x+(alpha-1)=0 has roots equal in magnitude but opposite in sign,is

. For what value of m will the equation (x^(2)-bx)/(ax-c)=(m-1)/(m+1) have roots equal in magnitude but opposite in sign?

If the equation (a)/(x-a)+(b)/(x-b)=1 has two roots equal in magnitude and opposite in sign then the value of a+b is

If the equation (a)/(x-a)+(b)/(x-b)= 1has two roots equal in magnitude and opposite in sign then the value of a+b is

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

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.