Question

write the expression as a complex number in standard form.
3-(2+2i)+4i

Answer 1

To remove parentheses, you must distribute the negative outside the parentheses:
3 - (2 + 2i) + 4i =
= 3 - 2 - 2i + 4i
Now combine like terms

Answer 2

is it going to be 5+6i

Answer 3

What is 3 - 2 ?

Answer 4

oh 1

Answer 5

What is -2i + 4i?

Answer 6

-2i

Answer 7

Right, so the answer is
1 - 2i

Answer 8

how about this one 6i+(5-3i)-5

Answer 9

Here, ther is a plus sign to the left of the parentheses, so you cna simply remove the parentheses and combine like terms.
6i + (5 - 3i) - 5 =
= 6i + 5 -3i - 5
Now combine like terms

Answer 10

so it would be just -3i

Answer 11

Like terms are terms that have the same variable part.
6i and -3i have the same variable parts, i.
They can be combined together.
6i - 3i = 3i
5 and -5 have the same variable part. Both have no variable at all.
5 and -5 can be combined together.
5 - 5 = 0
So you end up with just 3i
3i, not - 3i, since it's 6i - 3i, not 3i - 6i.

Answer 12

so i was almost right

Answer 13

Yes, but almost is still not right. You need to be careful adding positive and negative numbers together.

Answer 14

so if its a problem where one regular number is in the same parentheses as i number with i what do you do