MathDB
Problems
Contests
National and Regional Contests
Costa Rica Contests
Costa Rica - Final Round
2018 Costa Rica - Final Round
A1
A1
Part of
2018 Costa Rica - Final Round
Problems
(1)
min (2x^2 + 98)/(x + 7)^2 OLCOMA Costa Rica 2018 SL A1
Source:
10/1/2021
If
x
∈
R
−
{
−
7
}
x \in R-\{-7\}
x
∈
R
−
{
−
7
}
, determine the smallest value of the expression
2
x
2
+
98
(
x
+
7
)
2
\frac{2x^2 + 98}{(x + 7)^2}
(
x
+
7
)
2
2
x
2
+
98
algebra
inequalities
min