Find the minimum value of
\[f(x) = \sqrt{5x^2 + 2x \sqrt{5} + 1} + x \sqrt{5},\]over all $x$ for which $f(x)$ is defined.
Question:
Find the minimum value of
\[f(x) = \sqrt{5x^2 + 2x \sqrt{5} + 1} + x \sqrt{5},\]over all $x$ for which $f(x)$ is defined.
Answer:
Let's think step by step.

user
-1
Find the minimum value of
\[f(x) = \sqrt{5x^2 + 2x \sqrt{5} + 1} + x \sqrt{5},\]over all $x$ for which $f(x)$ is defined.
train