How do I do:
(-3+i) + (-4-i)
I know when a problem is like:
(3+5i)(5-3i)
You can foil out the answer...But I'm confused with when you are supposed to add.
Please help!
(-3+i) + (-4-i)
I know when a problem is like:
(3+5i)(5-3i)
You can foil out the answer...But I'm confused with when you are supposed to add.
Please help!
-
it's not foiling because the contents of the parenthesis are no being added. The parenthesis are there to show that those stay together so you would...
(-3-4)+(i-i)=-7
(-3-4)+(i-i)=-7