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OpenStudy (anonymous):
-9√8- +8√45 - 3√5
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OpenStudy (anonymous):
should that be a minus or a plus between the first two items :P
OpenStudy (anonymous):
-9√80 + 8√45 - 3√5
OpenStudy (anonymous):
\[-9*4\sqrt{5}+8*3\sqrt{5}-3\sqrt{5}=-15\sqrt{5}\]
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