SOLUTION: subtract. simplify by collecting like radical terms if possible. 9 sqrt 45 - 3 sqrt 5 =

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Question 433464: subtract. simplify by collecting like radical terms if possible.
9 sqrt 45 - 3 sqrt 5 =
Found 2 solutions by jorel1380, stanbon:
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
9√45-3√5=9√9√5-3√5
"""""""""=27√5-3√5=24√5

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
9 sqrt 45 - 3 sqrt 5 =
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9*3*sqrt(5) - 3*sqrt(5)
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= 27sqrt(5)-3sqrt(5)
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= 24sqrt(5)
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Cheers,
Stan H.