To find [tex]\( f(x) + f(x) + f(x) \)[/tex] when [tex]\( f(x) = x^2 \)[/tex], follow these steps:
1. First, evaluate [tex]\( f(x) \)[/tex]:
[tex]\[
f(x) = x^2
\][/tex]
2. Since we need to add [tex]\( f(x) \)[/tex] three times, we can express it as:
[tex]\[
f(x) + f(x) + f(x)
\][/tex]
3. Substitute [tex]\( f(x) \)[/tex] with [tex]\( x^2 \)[/tex]:
[tex]\[
x^2 + x^2 + x^2
\][/tex]
4. Combine like terms:
[tex]\[
x^2 + x^2 + x^2 = 3x^2
\][/tex]
Therefore, [tex]\( f(x) + f(x) + f(x) = 3x^2 \)[/tex].