Question

(4 + 2i) − (1 − 7i)

Answer 1

(4 + (2 * i)) - (1 - (7 * i)) =
3 + 9 i

Answer 2

@boots_2000

Answer 3

F: 5
O:-3i
I:1i
L:-5i

is this correct

Answer 4

In your problem FOIL does not apply because it is not a product of two binomials. Notice that you are supposed to subtract the second binomial from the first.
Remember that subtracting is the same as adding the opposite of the subtrahend. So:

Answer 5

@ChillOut help?

Answer 6

\[4+2i-(1-7i)=4+2i-1+7i=(4-1)+(2i+7i)=3+9i\]

Answer 7

okay thank you

Answer 8

yw