Answer:-3
Step-by-step explanation:
First find g(3).
So g(3)= -2(3)+1 so g(3)= -5
now plug this value into f(x).
f(-5)= (-5)3 +4(3) = -15+12 = -3
Answer:
- 145
Step-by-step explanation:
To evaluate f(g(3)), evaluate g(3) then substitute the result into f(x)
g(3) = - 2(3) + 1 = - 6 + 1 = - 5, then
f(- 5) = (- 5)³ + 4(- 5) = - 125 - 20 = - 145
