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Mathematics
Mathematics
Problem
Let
y
=
x
2
+
14
x
+
9
x
2
+
2
x
+
3
y = \frac{x^2 + 14x + 9}{x^2 + 2x + 3}
y
=
x
2
+
2
x
+
3
x
2
+
14
x
+
9
,
x
∈
R
x \in \mathbb{R}
x
∈
R
. Find the sum of greatest and least value of
y
y
y
.
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