Question

roots of equation -3 and -7 then unit equation​

Answer 1

Answer:

Under what conditions on complex constants α and β, will the quadratic equation z2+αz+β=0 have (a) real roots, (b) one of the roots on the unit circle |z|=1?

Suppose the quadratic equation has real roots, say z=x. Then,

x2+αx+β=0andx2+α¯x+β¯=0

Eliminating x, ...

Answer 2

ANSWER

EXCLIMINATING x,