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Let f(x)=x^2 and g(x)" "=" "2x" "+...

Let `f(x)=x^2` and `g(x)" "=" "2x" "+" "1` be two real functions. Find `(f" "+" "g)` `(x)` , `(f" "" "g)" "(x)` , `(fg)" "(x)` , `(f/g)(x)` .

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Given:
`f(x)=x^2` and `g(x)=2x+1`
`(f+g)(x)=f(x)+g(x)`
`=(x^2)+(2x+1)`
`=x^2+2x+1`
(ii)
`(f-g)(x)=f(x)-g(x)`
`=(x^2)-(2x+1)` ...
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