SOLUTION: 7times the square root of 7 mnus 2 times the squre root of 7

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Question 143203: 7times the square root of 7 mnus 2 times the squre root of 7
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
7+%2A+sqrt%287%29++-+2%2Asqrt%287%29+
Let sqrt(7) be x
7+%2Ax+-+2%2Ax+
Can you solve that one? i bet you can.
5x
but x = sqrt(7)
5%2Asqrt%287%29
The sqrt(7) adds and subtracts just like any other number ... just more difficult to get your mind around what the value is. For this problem, we don't care what the sqrt(7) is. We just let it ride !