SOLUTION: Can you please answer this problem? (3 times the square root of 20)-(7 times the square root of 45)

Question 190509: Can you please answer this problem? (3 times the square root of 20)-(7 times the square root of 45)
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Can you please answer this problem? (3 times the square root of 20)-(7 times the square root of 45)

sqrt(20) = sqrt(4)*sqrt(5) = 2sqrt(5)
sqrt(45) = sqrt(9)*sqrt(5) = 3sqrt(5)
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