find solution of the equation x2 + 5=0 in complex no's - Maths - Complex Numbers and Quadratic Equations

Question

find solution of the equation x2 + 5=0 in complex no's

Varun.Rawat · Accepted Answer

We have,    x2 + 5 = 0⇒x2 = -5⇒x2 = 5i2    as i2 = -1⇒x = 5 i  and x = -5i