SOLUTION: How do you solve 3 radical sign 32 minus 4 radical sign 63

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Question 38245This question is from textbook Algebra
: How do you solve 3 radical sign 32 minus 4 radical sign 63 This question is from textbook Algebra

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
3*sqrt(32) - 4*sqrt(63) cannot be "solved" but it can be simplified a little bit...we pull out perfect squares...so
3*sqrt(32) - 4*sqrt(63) =
3*sqrt(16)*sqrt(2) - 4*sqrt(9)*sqrt(7) =
12*sqrt(2) - 12*sqrt(7)