How do you evaluate $(4+ 8i ) - ( 3+ 3i )$ ?

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Answer 1 · 2017-12-06T03:34:58

$i=-1/5$

Transform the equation to an addition equation could make things easier

$(4+8i)-(3+3i)$

$(4+8i)+(-3-3i)$

I’m going to rearrange them to make things even easier.

$8i-3i+4-3$

$5i+1$

Now you want to solve to find i (You want to isolate it.)

$5i+1-1=0-1$

$5i=-1$

$(5i)/5= -1/5$

$i=-1/5$

How do you evaluate (4+ 8i ) - ( 3+ 3i )(4+ 8i ) - ( 3+ 3i )?