Algebra

Simplify:

(x)+(4/x)-(1)
--------------divide top by bottom
(1/x)-(3/x^2)

I have been trying to solve this one, but I just don't know how to start. I feel like I am missing out on some math rules, so please help!

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asked by Sara
  1. add or subtract. simplify by collecting like radical terms, if possible 6square root2-2 square root 2+5 square root2=

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