SOLUTION: I am so confused on how to add and subtract radical expressions. Please help. √2 + 3√2 - 5√3 √5 + 4√25 - 3√5 √50 + √27 - 2

Algebra ->  Radicals -> SOLUTION: I am so confused on how to add and subtract radical expressions. Please help. √2 + 3√2 - 5√3 √5 + 4√25 - 3√5 √50 + √27 - 2      Log On


   

Question 559243: I am so confused on how to add and subtract radical expressions. Please help.
√2 + 3√2 - 5√3
√5 + 4√25 - 3√5
√50 + √27 - 2√5 + 7√3
I really need to be walked through the steps on how to solve these problems.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%282%29%2B3sqrt%282%29-+5sqrt%283%29
4sqrt%282%29-5sqrt%283%29
you cant add these two since the radicand is notthe same
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sqrt(25)=5
sqrt%285%29%2B5-3sqrt%285%29
since the radicands are 5 you can subtract them
5-2sqrt%285%29
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sqrt%2850%29%2Bsqrt%2827%29-2sqrt%285%29%2B7sqrt%283%29
sqrt%282%2A5%2A5%29%2Bsqrt%283%2A3%2A3%29-2sqrt%285%29%2B7sqrt%283%29
5sqrt%282%29%2B3sqrt%283%29-2sqrt%285%29%2B7sqrt%283%29
5sqrt%282%29%2B10sqrt%283%29-2sqrt%285%29
m.ananth@hotmail.ca