+129899 x^2 + 36 = 0
x^2 = -36 take both roots
x = ±√[-36]
x = ±√[-1* 36]
x = ±i√36
x = ± 6i
+1713 ( x + 6i ) ( x - 6i ) = 0
\(x = \pm\ 6i\)
-\(tommarvoloriddle\)
Edit: For anyone who cares enough to look at my post and wants to know how to do the plus-minus sign in latex, it is \pm . On websites like AoPS, it is $\pm$ .
+2864 Whenever you have an equation in this form, try to isolate x, then take the square roots of both sides
This is called the square roots method.
+1713 Yeah by still it's a different way... I personally like CPhills way, but I like presenting 2 sides, which is why I posted on CPhills answer.
-\(tommarvoloriddle\)
