If x=(10-3i) and y=(3-10i), then xy=? and x/y=?

Step-by-step explanation:

To compute x times y must use foil on the right hand side.

First:  

Outer:

Inner:

Last:

------------------------------------Add like terms:

----------------

Multiply top and bottom by bottom's conjugate:

Foil the top and just do first and last of Foil for the bottom since the bottom contains multiplying conjugates:

Replace with -1:

20

step-by-step explanation:

one that is bigger than 3 1/2