SOLUTION: Combine and Simplify: (square root of)160 - (square root of)490 a) -(square root of)320 b) -3(square root of)10 c) -30 d) -3 e) None of these

Algebra ->  Square-cubic-other-roots -> SOLUTION: Combine and Simplify: (square root of)160 - (square root of)490 a) -(square root of)320 b) -3(square root of)10 c) -30 d) -3 e) None of these      Log On


   

Question 64517: Combine and Simplify: (square root of)160 - (square root of)490
a) -(square root of)320
b) -3(square root of)10
c) -30
d) -3
e) None of these
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt160-sqrt490
4sqrt10-7sqrt10
-3sqrt10
answer B)-3sqrt10