Write -2i + (9 − 3i) − (6 − 10i) as a complex number in standard form. 3 − 5i 3 + 5i 3 + 16i 12 − 16i

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Write -2i + (9 − 3i) − (6 − 10i) as a complex number in standard form. 3 − 5i 3 + 5i 3 + 16i 12 − 16i

Mathematics
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can you help @Nnesha and @sohailiftikhar
first of all distribute 2nd parentheses by negative one
|dw:1438709754483:dw| -1(6-10i) distribute

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Other answers:

-6+10i
it's 3+5i
yep right now combine *like terms \[\huge\rm -2i+9-3i -6+10i\]
but if i was to distribute to the first part both numbers would be imaginary
3+5i
do you mean first parentheses ?
yeah
there is a plus sign so you don't have to distribute just remove the parentheses
\[-2i-3i+10i+9-6=3i+5\]
you just have to add or subtract like numbers only
|dw:1438709987964:dw| was how they showed me
that was the example they gave me
can you help with this problem as well? Write (21 − 4i) − (16 + 7i) + 28i as a complex number in standard form. 5 + 39i 5 + 17i 5 − 39i 5 − 17i
yep they shows what are like terms 3i and 5i are like terms so combine them add their coefficient (3+5)i = 8i
ok Nnesha you here
same like last one so what would be the first step ?
okay so this one i would combine right ?
nope that's 2nd step
\[ \huge\rm (21 − 4i) \color{ReD}{−} (16 + 7i) + 28i \] there is a negative sign so.?
lol it's not a level of child Nnesha
what do you mean by that ?
i would add a 1?
just combine the terms and get answer what is that mean by 1st step and 2nd ?
there are steps to solve any math questions
yes but we have to see where we need then or where we can directly
1st step) distribute parentheses by -1 2nd) combine like terms how would you combine them first without applying distributive property ?
21- 16 would be 5 and it would be subtraction after that right ?
so if you have given with a lengthy Question and then you will still use every basic step huh ?
\(\color{blue}{\text{Originally Posted by}}\) @sohailiftikhar just combine the terms and get answer what is that mean by 1st step and 2nd ? \(\color{blue}{\text{End of Quote}}\) first distribute parentheses
if you start with combining like terms you would get wrong answer
what if you are solving multiple choices and you have short time to do them huh ?
the last part would be 17 but is it negative ?
you can't get wright answer without doing first step.
not for this Question
right*
at this point we should focus on this question.
agreed ^
so it would be 5+17I right?
yes so it can solve by just adding terms
ok don't mind this bye
thanks again guys you've been a really big help!!!
no problem buddy
\(\color{blue}{\text{Originally Posted by}}\) @sohailiftikhar yes so it can solve by just adding terms \(\color{blue}{\text{End of Quote}}\) again first we have to distribute the parentheses
yes but we done this in our mind not on page because it's simple in this case

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