Answer:
(
f
∘
g
)
(
x
)
=
10
x
−
3
Step-by-step explanation:
Just plug the formula for g
(
x
) into the formula for f
(
x
)
(so replace x in the formula for f
(
x
)
with what g
(
x
)
equals), then simplify:
(
f
∘
g
)
(
x
)
=
f
(
g
(
x
)
)
=
f
(
2
x
−
1
)
=
5
(
2
x
−
1
)
+
2
=
10
x
−
5
+
2
=
10
x
−
3
.
