Question

can someone tell me what I did wrong,
10(4 - 3i)
and my answer is 40+30i
this is Imaginary Numbers

Answer 1

You started with a minus, how did it turn into a plus?

Answer 2

10 * -3i = -30i

Answer 3

it should stay plus still don't change the singe

Answer 4

imaginary number i^2=-1 but u did not have that so do not change the signe

Answer 5

The answer should be 40-30i

Answer 6

@nbouscal yea I shouldnt have changed the sign

Answer 7

I corrected myself and its right