Question

So how do i solve this. Answer this with explanation please or steps.

3i +2i^3 So how do i solve this. Answer this with explanation please or steps.

3i +2i^3 @Mathematics

Answer 1

\[2i^3=2i*i^2=2i*(-1)=-2i\]therefore:
\[3i+2i^3=3i-2i=i\]

Answer 2

@JohnJungg - is this understandable or do you want more explanation?

Answer 3

Is there anyway to simplify the 2i^3 in a different way?

Answer 4

since\[i=\sqrt{-1}\]\[i*i=-1\]therefore:\[2i^3=2*i*i*i=2*i*(-1)=-2i\]

Answer 5

Alright thank you

Answer 6

yw