SOLUTION: i need help solving radicals. 7 square roots of 10 - 2 square roots of 90 +4 square roots of one tenth. thanks

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Question 213229: i need help solving radicals.

7 square roots of 10 - 2 square roots of 90 +4 square roots of one tenth.

thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
7 square roots of 10 - 2 square roots of 90 +4 square roots of one tenth
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7sqrt(10) - 2 sqrt(90) + 4sqrt(1/10)
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7sqrt(10) - 2*3sqrt(10) + (4/10)sqrt(10)
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sqrt(10) + (2/5)sqrt(10)
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(7/5)sqrt(10)
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Cheers,
Stan H.