SOLUTION: rationalize the numerator and simplify 7-Sqrt(10)/2

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Question 1057982: rationalize the numerator and simplify
7-Sqrt(10)/2
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
rationalize the numerator and simplify
%287-Sqrt%2810%29%29%2F2
Multiply by the conjugate of the numerator over itself, (equals 1)
%287-Sqrt%2810%29%29%2F2 * %287%2BSqrt%2810%29%29%2F%287%2Bsqrt%2810%29%29 = %2849-10%29%2F%282%287%2Bsqrt%2810%29%29%29 = 39%2F%2814%2B2sqrt%2810%29%29