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OpenStudy (anonymous):
3√10+7√15-6√10-4√15 Answers: 3√10-3√15 3√20-3√30 3√30-3√20 3√15-3√10
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OpenStudy (anonymous):
....? What is the question?
OpenStudy (saifoo.khan):
D
OpenStudy (saifoo.khan):
D for Duck. is the answer
OpenStudy (anonymous):
thank you!
OpenStudy (kinggeorge):
\[(3\sqrt{10} - 6 \sqrt10) + (7\sqrt15 -4\sqrt15) =3\sqrt15 - 3\sqrt10\]
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