SOLUTION: Please help with this problem: -12SQRT8 + 7SQRT18 + 2SQRT50 = I'm stumped! Thank you!

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Question 85391: Please help with this problem:
-12SQRT8 + 7SQRT18 + 2SQRT50 =
I'm stumped! Thank you!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-12SQRT8 + 7SQRT18 + 2SQRT50
= -12[2sqrt2] + 7[3sqrt2] + 2[5sqrt2]
= -24sqrt2 + 21sqrt2 + 10sqrt2
= 7sqrt2
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Cheers,
Stan H.