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OpenStudy (anonymous):
-sqrt75 + sqrt12 - 3sqrt3
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OpenStudy (jlastino):
-6sqrt3
OpenStudy (anonymous):
How do you get it?
OpenStudy (anonymous):
You can rewrite 12 as 3*4. sqrt(3*4) = 2sqrt(3). Do the same for the 75 (3*25), and factor out the root, 5. So we get -5sqrt(3) + 2sqrt(3) - 3sqrt(3) = -6sqrt(3)
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