f(x)=x^{2}\nwhat is f(x)+f(x)+f(x)?
f(x)=x^{2}\nwhat is f(x)+f(x)+f(x)?
Answer
Explanation:
Step1: Find $f(3)$
Given $f(x)=x^{2}$, then $f(3)=3^{2}=9$.
Step2: Find $f(x)$
Since $f(x)=x^{2}$, $f(x)$ remains $x^{2}$.
Step3: Find $f(x + 1)$
Substitute $x$ with $x + 1$ in $f(x)=x^{2}$, we get $f(x + 1)=(x + 1)^{2}=x^{2}+2x + 1$.
Step4: Calculate $f(3)+f(x)+f(x + 1)$
$9+x^{2}+x^{2}+2x + 1=2x^{2}+2x+10$.
Answer:
$2x^{2}+2x + 10$