SOLUTION: how do you do 4 square root of 45 - square root of 75

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Question 199133: how do you do 4 square root of 45 - square root of 75
Found 3 solutions by rfer, Alan3354, MathTherapy:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
All you have to do is square the equation to eliminate the square root sign and solve.
X=16(4)-75
X=64-75
X=11

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I don't see an equation, as the other solver implied.
4sqrt%2845%29+-+sqrt%2875%29
= 4sqrt%289%29%2Asqrt%285%29+-+sqrt%2825%29%2Asqrt%285%29
= 12sqrt%285%29+-+5sqrt%285%29
= 7sqrt%285%29

Answer by MathTherapy(10858) About Me  (Show Source):
You can put this solution on YOUR website!
4sqrt%2845%29–sqrt%2875%29
4sqrt%289%29%2Asqrt%285%29 – sqrt%2825%29%2Asqrt%283%29
= 12sqrt%285%29 – 5sqrt%283%29