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OpenStudy (anonymous):
Simplify the square root of -40+ the the square root of 90
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OpenStudy (anonymous):
no real square root of -40
OpenStudy (anonymous):
are you working with reals or complex numbers?
OpenStudy (anonymous):
3sqrt(10)+i2sqrt(10)
OpenStudy (anonymous):
\[-\sqrt{40} + \sqrt{90}\]
OpenStudy (anonymous):
sqrt(10) is the answer then :)
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OpenStudy (anonymous):
\[-2\sqrt{10}+3\sqrt{10}=\sqrt{10}\]
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