Question

Find the quadratic equation for these given solutions: x = 2i and x = -2i

Answer 1

(x-2i)(x+2i)=0
x^2+4=0

Answer 2

x^2 - Sx + P = 0

where S= a+b
and P=a.b

where a, b are the roots of quadratic equation.

Answer 3

(x-a)*(x-b)=0
where a and b are roots