SOLUTION: not from a book. 6 squareroot of 45 +2 square root 80 i did it 2 different ways. which is correct. let\ stand for square root for this problem. first way

Algebra ->  Radicals -> SOLUTION: not from a book. 6 squareroot of 45 +2 square root 80 i did it 2 different ways. which is correct. let\ stand for square root for this problem. first way       Log On


   

Question 33429: not from a book.
6 squareroot of 45 +2 square root 80
i did it 2 different ways. which is correct.
let\ stand for square root for this problem.
first way

6\9\5 + 2\10\4\2
6\45 + 2\80
6*3\5 +2\10*2\2
=6\9\5 + 2\5\16
=6*3\5 + 2\5*4
=18\5 + 8\5
=26\5



Found 2 solutions by sarah_adam, stanbon:
Answer by sarah_adam(201) About Me  (Show Source):
You can put this solution on YOUR website!
Either way you are correct and the answer is right
Just a clear way of your way of solving:
6sqrt%2845%29+2sqrt%2880%29
6sqrt%289%2A5%29+2sqrt%2816%2A5%29
6*3sqrt%285%29+2*4sqrt%285%29
18sqrt%285%29+8sqrt%285%29
sqrt%285%29(18+8)
26sqrt%285%29

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
6sqrt(45) + 2sqrt(80)
6(3)sqrt5 +2(4)sqrt5
18sqrt5 + 8sqrt5
26sqrt5
Cheers,
Stan H.