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OpenStudy (anonymous):
simplify
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OpenStudy (anonymous):
|dw:1339121752904:dw|
OpenStudy (studyhard):
it's impossible to square root a negative number...
OpenStudy (callisto):
\[\sqrt{-25} - \sqrt{16}\]\[=\sqrt{-1\times 5^2} - \sqrt{4^2}\]\[=5i - 4\]
OpenStudy (maheshmeghwal9):
|dw:1339129177047:dw| since\[i=\sqrt{-1}\]
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