Answer:
(g-f)(3) = 23
Step-by-step explanation:
f(x) = 4-x^2
g(x) = 6x
we need to find g-f(3)
Put the value of x = 3 in g(x) and f(x) and subtract f(x) from g(x) i.e
(g-f)(3) = g(3) - f(3)
(g-f)(3) = 6(3) - {4-(3)^2}
(g-f) (3)=18-(4-9)
(g-f)(3) = 18-(-5)
(g-f)(3) = 18+5
(g-f)(3) = 23
so, (g-f)(3) = 23
Answer:
23
Step-by-step explanation:
(g-f)(3)=g(3)-f(3)
So we need to find g(3) and f(3). Then subtract.
g(3)=6(3)=18.
f(3)=4-(3)^2=4-9=-5.
(g-f)(3)=g(3)-f(3)=18-(-5)=18+5=23
