## anonymous one year ago f(x) = a^2 - 1 , g(x) = a/(a + 1) .. Can someone help me figure out the f+g , f-g , f*g and f/g

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1. anonymous

$f(x)=x ^{2}-1$ $g(x)=\frac{ x }{ x+1 }$ To solive f+g, simply add both equations $f+g=\left( x^2+1 \right)+\left( \frac{ x }{ x+1 } \right)$

2. anonymous

I don't think there is any need to simplify, unless it states in the quesiton

3. anonymous

use this idea to solve the other new functions