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Precalculus
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OpenStudy (anonymous):
solve; find all real and imaginary solutions in exact form. x^4-9x^2-10=0
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OpenStudy (anonymous):
\[x= i, -i, \sqrt{10}, -\sqrt{10}\]
OpenStudy (anonymous):
can you explain how you did that?
OpenStudy (anonymous):
I just don't understand what method you use to solve it
OpenStudy (raffle_snaffle):
|dw:1377059816436:dw|
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