anonymous
  • anonymous
-2+7i ------ -4-3i A.) 3-14i --------- 6 B.) -13-34i --------- 25 C.) -13-22i --------- 25 D.) -13+22i ---------- 25
Mathematics
schrodinger
  • schrodinger
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amistre64
  • amistre64
xavier is quick like lol
anonymous
  • anonymous
Multiply the top and bottom by -4+3i. I usually only give advice when im all ninja like
amistre64
  • amistre64
-16-9=-25... got that much lol

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amistre64
  • amistre64
16-9 tho right? 7
amistre64
  • amistre64
ack.... 25 is the bottom
anonymous
  • anonymous
Yeah
anonymous
  • anonymous
okay top is -27 and bottom is11
amistre64
  • amistre64
16 -9i^2 = 16+9 = 25
anonymous
  • anonymous
How did you get that katie?
anonymous
  • anonymous
ohh wait its 25 sorry
amistre64
  • amistre64
27 is a magic number lol
anonymous
  • anonymous
so is the answer D
anonymous
  • anonymous
I got B: (-2+7i)(-4+3i)=8-6i-28i+21i^2=8-6i-28i-21=-13-34i For the numerator. 25 Denominator
anonymous
  • anonymous
oh okay i see how you did that
anonymous
  • anonymous
i gave you a medal
anonymous
  • anonymous
for your help
amistre64
  • amistre64
I get B as well

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