1) f(x) = x^2-2x-3, g(x)=x+1

Find f+g

f-g

fxg

f/g

My answers:

x^2+x-4

x^2-x-6

x^3+x^2-5x-5

x^2-5/x+1

F(x)=square rot of 2x-i , g(x) =square root 7-x

Find the domain of

f+g

f-g

fxg

f/g