Question

Given the expression (8 + 6i) − (−2 + 7i), perform the indicated operation and write the answer in the form a + bi.

6 + 13i
12 − i
10 + 13i
10 − i

Answer 1

8+6i+2-7i=10-i

Answer 2

@Er.Mohd.AMIR its better to guide the person to the answer instead of doing the work for them.

Answer 3

ok

Answer 4

if -(a-b)=-a+b
after open bracket sing change if - before bracket.

Answer 5

First open the parenthesis
like @Er.Mohd.AMIR did
\[(8+6i)-(-2+7i)=8+6i+2-7i \longleftarrow ~here~we ~are~distributing~~-1~to ~(-2+7i)\]

Answer 6

to (-2+7i) the part that is not appearing in my replay

Answer 7

then juct collect like term and add up

Answer 8

Clear!