poopsiedoodle
  • poopsiedoodle
Can someone explain how to do quadratic equations with complex numbers?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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precal
  • precal
yes, that means when you graph your quadratic function, it does not cross the x axis at all
precal
  • precal
|dw:1358903985103:dw|here is an example of a quadratic with complex solutions
poopsiedoodle
  • poopsiedoodle
Okay, but I still need help with solving them.

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precal
  • precal
well then post one so we can work it together
poopsiedoodle
  • poopsiedoodle
Okay. Just a second.
poopsiedoodle
  • poopsiedoodle
√(-36) - √(-40) It's one of the example problems that I can't get right.
precal
  • precal
|dw:1358904893711:dw|
poopsiedoodle
  • poopsiedoodle
That makes sense I guess :P
precal
  • precal
this is just complex numbers. Complex numbers can be added, subtracted, multiplied and divided......not a big deal.....electrical engineers use them....
poopsiedoodle
  • poopsiedoodle
How about an actual quadratic equation now? :3
precal
  • precal
post it, makes no difference to me.......
poopsiedoodle
  • poopsiedoodle
\[\Huge x^{2}+6x+11 = 0\]
precal
  • precal
|dw:1358905661660:dw|do you see the negative number under the radical
precal
  • precal
that tells you that your solution is complex
precal
  • precal
|dw:1358905735721:dw|
poopsiedoodle
  • poopsiedoodle
OH. Okay. I get it now. Thanks! :D
precal
  • precal
another way to do it is by completing the square but the quadratic formula is easier to do it by.
precal
  • precal
yw
poopsiedoodle
  • poopsiedoodle
Actually, I don't :<
precal
  • precal
close this problem and post a new one. You can send me a notification and we can work on another one together

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