Question

g(t) = −3t^3 − 4t f (t) = 4t − 4 Find g(t) + f (t)

Answer 1

$g(t)=-3t^3-4t$$f(t)=4t-4$

As there is an adition of functions you have:

$g(t)+f(t)=(-3t^3-4t)+(4t-4)$

You remove the parentheses:

$=-3t^3-4t+4t-4$

Make adds and substracts: You can just add or substract similar terms (ex. t^2+2t^2=3t^2)

$=-3t^3-4$Then:

$g(t)+f(t)=-3t^3-4$