How to Multiply Complex Numbers.

How to multiply complex numbers (numbers with i)

0:20 (-4)^i After multiplying the complex numbers you then use the patterns of i

0:35 This problem involves multiplying two complex numbers together.

(9-7i)(-6-5i)

This problem is like a polynomial in which you foil the problem.

1:47 This problem involves dividing complex numbers.

4+i/5^i

Remember you can have -i which is a radical in the denominator,therefore you get of i by multiplying by -i

3:30 This problem involves a full complex number and you have to multiply by a conjugate.