SOLUTION: Write the expression in the form a+bi 1. (8-3i) + (-6+2i) 2. {{{4/(2-i)}}} thanks!

Algebra ->  Equations -> SOLUTION: Write the expression in the form a+bi 1. (8-3i) + (-6+2i) 2. {{{4/(2-i)}}} thanks!      Log On


   

Question 245812: Write the expression in the form a+bi
1. (8-3i) + (-6+2i)
2. 4%2F%282-i%29
thanks!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Write the expression in the form a+bi
1. (8-3i) + (-6+2i)
= (8-6)+(-3i+2i)
= 2-i
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2. 4/(2-i)
Multiply numerator and denominator by 2+i to get:
[4(2+i)]/[(2-i)(2+i)]
= [8+4i]/[4+1]
= [8+4i]/5
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Cheers,
Stan H.