Solving Complex Roots: x^2 + 25 = 0

[Corkery]

[SOLVED] Compex roots

Homework Statement

state the number of complex roots of each equation, then find the roots and graph the related function.

x^2 + 25 = 0

Homework Equations

The Attempt at a Solution

x^2 + 25 = 0

so there are 2 complex roots. Once I have established that then I minus the 25 to the other side.

x^2 = -25

square root both sides.

x = +/-5i

I'm pretty sure everything up to this point is correct but the thing I did above I think it is wrong. Firstly because if there are two complex roots and I already have one of them what is the other one. I'm confused, so please help me. thank you.

 

[rock.freak667]

you have both roots...x=+5i and x=-5i ...it is correct