Answer and step-by-step explanation:
To find (f+g)(t), add the two given functions.
f(t) = -3t^2 + 6t
g(t) = t - 3
(f+g)(t) = (-3t^2 + 6t) + (t - 3) => put parentheses at the first step
(f+g)(t) = -3t^2 + (6t + t) - 3 => combine similar terms
(f+g)(t) = -3t^2 + 7t - 3
*If you have any questions regarding this, comment below and I will answer them. ^^
