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Subtracting a radical? Please help me!!!!! (7- √54) - (5 + √24)
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\[\sqrt{54}=\sqrt{9*6}\] \[\sqrt{24}=\sqrt{4*6}\]
use that to simplify... then combine like terms
2 - √30?
why sqrt30 ?
9 is 3^2 so sqrt(9*6) = 3*sqrt(6)
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2 - 5 sqrt 6?
yes
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