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Mathematics
Mathematics
Problem
The derivative of a function
f
f
f
is given by
f
′
(
x
)
=
4
+
2
x
−
3
e
x
f'(x) = 4 + 2x - 3e^x
f
′
(
x
)
=
4
+
2
x
−
3
e
x
, where
x
∈
R
x \in \mathbb{R}
x
∈
R
. a. Find the values of
x
x
x
for which
f
f
f
is decreasing. b. Find the values of
x
x
x
for which the graph of
f
f
f
is concave-up.
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