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(5-3i)-(2+4i) (4-3i)(9+2i) (squarerootof -25)^3 5i/3-i
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u answer mine ill answer urs
Nobody wants to do your homework for you
first one is combining like terms. you get \[(5-3i)-(2+4i)=5-3i-2-4i=3-7i\]
except maybe satellite
why not?
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lol
first, the point of this website it to help people. second, it is not my homework.
you multiply \[(a+bi)(c+di)=(ac-bd)+(ad+bc)i\]
so \[(4-3i)(9+2i) =(4\times 9+3\times 2)+(4\times 2-3\times 9)i\] or \[42-19i\]
\[\sqrt{-25}=5i\] so \[(5i)^3=5^3i^3=125(-i)=-125i\]
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and finally \[\frac{5i}{3-i}=\frac{5i}{3-i}\times \frac{3+i}{3+i}=\frac{-5+15i}{10}\]
which you write in standard form as \[-\frac{1}{2}+\frac{3}{2}i\]
so satellite wanna do mine
yeah why not
where is it?
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