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

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

er.mohd.amir · Answer

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

jagr2713 · Answer

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

er.mohd.amir · Answer

ok

er.mohd.amir · Answer

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

xapproachesinfinity · Answer

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

xapproachesinfinity · Answer

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

xapproachesinfinity · Answer

then juct collect like term and add up

xapproachesinfinity · Answer

Clear!