SOLUTION: √40+√90

Algebra ->  Radicals -> SOLUTION: √40+√90      Log On


   

Question 446332: √40+√90
Answer by chriswen(106) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%2840%29%2Bsqrt%2890%29
=sqrt%284%2A10%29%2Bsqrt%289%2A10%29
=2%2Asqrt%2810%29%2B3%2Asqrt%2810%29 ... i.e. 2x+3x=5x
=5%2Asqrt%2810%29
...
The answer would be 15.8 but, you could have found that from the beginning. 5%2Asqrt10 is the simplified answer from what you gave.