anonymous
  • anonymous
Is this correct?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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UsukiDoll
  • UsukiDoll
|dw:1434337660225:dw|
anonymous
  • anonymous
|dw:1434337652479:dw|
UsukiDoll
  • UsukiDoll
is that a negative inside the radical?

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UsukiDoll
  • UsukiDoll
because if there is a negative inside the radical we have imaginary numbers and they aren't real
anonymous
  • anonymous
yes
UsukiDoll
  • UsukiDoll
ok...I already said it if there was a negative inside the radical , it leads to imaginary number... a.k.a i
anonymous
  • anonymous
meant yes meaning that I understood lol
UsukiDoll
  • UsukiDoll
\[\sqrt{-1} = i, -i \] \[\sqrt{-4} = +2i , -2i\] some algebra ii stuff xD
anonymous
  • anonymous
|dw:1434337932762:dw|
anonymous
  • anonymous
so than what would that be? @UsukiDoll
UsukiDoll
  • UsukiDoll
what is that? can you redraw it... if the - sign is outside... it would still be real.
anonymous
  • anonymous
@UsukiDoll It's outside
UsukiDoll
  • UsukiDoll
ok... that won't change anything... as long as the - isn't inside we're good but what is that number inside the radical?
anonymous
  • anonymous
124
UsukiDoll
  • UsukiDoll
\[-\sqrt{124}\] now can we split that number so we can have a perfect square?
UsukiDoll
  • UsukiDoll
I think this time the perfect square number is going to be small... there is only 1 that works
UsukiDoll
  • UsukiDoll
\[-\sqrt{(4)(31)}\] I think you can handle this from here.
UsukiDoll
  • UsukiDoll
you just have to take the square root of 4...and you have the final answer.

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