Question

Calc arithmetic of functions wkst

Answer 1

all of them??

Answer 2

f(x) = 3x - 7 , g(x) = x2 + 3x - 4
two functions
to find (f+g)(x) you should add both functions \[\large\rm \color{red}{f(x)}+\color{blue}{g(x)}\]\[ \huge\rm \color{ReD}{ 3x - 7} +\color{blue}{ x
^2 + 3x - 4}\]

Answer 3

now combine like terms

Answer 4

for (f-g)(x) subtract both functions \[\huge\rm \color{reD}{(3x-7)}-\color{blue}{(x^2 + 3x - 4)}\] there is `negative ` sign so first distribute 2nd parentheses by negative one