Sum It up
6i + 12i
18i
6i - 12i
-6i
4 * 3i
12i
i^2
-1
x^2-30=0
Square root method
-3i + 11i
8i
11i - 4i
7i
3i * -12i
36
i cubed
- i
x^2-15x+56=0
Facotring
(1+3i) + 2i
1 + 5i
(-1 + 5i) - 4i
-1 + i
-12i * -3i
-36
sqrt(-40)
2isqrt10
x^2+8x=20
Completing the square
(possibly factoring too)
(4 - i) + ( -3+5i)
1 + 4i
(8+4i) - (1 + 5i)
7-i
-3i * (4 + 6i)
-12i + 18
16i^2
-16
3x^2-15x+32=0
Quadratic Formula
-2i + 6i + (4+i)
4 + 5i
(-6 - 6i) - 3i + 5i
-6 - 4i
(-3 + 6i)(-3 + 6i)
-27 + 36i
5+6i-13i^2
18+6i
4x^2+16x-48=0
GCF then any method works!