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Problem
Problem
If
g
(
x
)
=
x
2
+
x
−
2
g(x) = x^2 + x - 2
g
(
x
)
=
x
2
+
x
−
2
and
1
2
(
g
∘
f
)
(
x
)
=
2
x
2
−
5
x
+
2
\frac{1}{2}(g \circ f)(x) = 2x^2 - 5x + 2
2
1
(
g
∘
f
)
(
x
)
=
2
x
2
−
5
x
+
2
, then
f
(
x
)
f(x)
f
(
x
)
is equal to (a)
2
x
−
3
2x - 3
2
x
−
3
(b)
2
x
+
3
2x + 3
2
x
+
3
(c)
2
x
2
+
3
x
+
1
2x^2 + 3x + 1
2
x
2
+
3
x
+
1
(d)
2
x
2
−
3
x
−
1
2x^2 - 3x - 1
2
x
2
−
3
x
−
1
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