SOLUTION: Show steps: [98]-[50]-[72] Hint: Where the [] are it demonstrates a square sign.

Algebra ->  Radicals -> SOLUTION: Show steps: [98]-[50]-[72] Hint: Where the [] are it demonstrates a square sign.       Log On


   

Question 183076: Show steps:
[98]-[50]-[72]
Hint: Where the [] are it demonstrates a square sign.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

sqrt%2898%29-sqrt%2850%29-sqrt%2872%29 Start with the given expression


7%2Asqrt%282%29-sqrt%2850%29-sqrt%2872%29 Simplify sqrt%2898%29 to get 7%2Asqrt%282%29. Note: If you need help with simplifying square roots, check out this solver.


7%2Asqrt%282%29-5%2Asqrt%282%29-sqrt%2872%29 Simplify sqrt%2850%29 to get 5%2Asqrt%282%29.


7%2Asqrt%282%29-5%2Asqrt%282%29-6%2Asqrt%282%29 Simplify sqrt%2872%29 to get 6%2Asqrt%282%29.


Since we have the common term sqrt%282%29, we can combine like terms


%287-5-6%29sqrt%282%29 Combine like terms. Remember, 5x%2B3x-4x=%285%2B3-4%29x=4x


-4%2Asqrt%282%29 Now simplify 7-5-6 to get -4


So sqrt%2898%29-sqrt%2850%29-sqrt%2872%29 simplifies to -4%2Asqrt%282%29.


In other words, sqrt%2898%29-sqrt%2850%29-sqrt%2872%29=-4%2Asqrt%282%29