SOLUTION: How would you perform the indicated operation? 8 over the square root of 80-3 over the square root of 45

Algebra.Com
Question 135563: How would you perform the indicated operation?
8 over the square root of 80-3 over the square root of 45

Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
8/sqrt(80) - 3/sqrt(45)
=8/sqrt(16*5) - 3/sqrt(9*5)
=8/4sqrt(5) - 3/3sqrt(5)
=2/sqrt(5) - 1/sqrt(5)
=(2-1)/sqrt(5)
=1/sqrt(5)
=1/sqrt(5) * sqrt(5)/sqrt(5)
=sqrt(5)/5
.
Ed

RELATED QUESTIONS

Perform the indicated operation and simplify. (square root of 7 -5)(square root of 7 (answered by checkley71)
Perform the indicated operation and simplify. -8+ square root of 48 OVER 4 a= -2+ (answered by checkley71)
Perform the indicated operation and simplify. square root of 18x TIMES square root... (answered by ankor@dixie-net.com)
Perform the indicated operation and simplify. square root of 18x TIMES square root of... (answered by MathLover1)
Please help me perform the operation indicated. Thank you 3 into square root 3 x... (answered by tutorcecilia)
Please help me perform the operation indicated. Thank you 3 into square root 3 x... (answered by daniellagirl89)
how do you simplify the square root of 3 over the square root of... (answered by Alan3354)
square root of 14 over the square root of 3 (answered by CharlesG2,stanbon,dabanfield)
How would you solve the sqaure root of 10 over the square root of... (answered by nyc_function)