Answer:
f(1) = 2
Step-by-step explanation:
Step 1: Identify the function
f(x) = x^2 + 2x^2 - x - 1
Step 2: Simplify the function
f(x) = 3x^2 - x - 1
Step 3: Set x to 1 in the function
f(1) = 3(1)^2 - (1) - 1
f(1) = 3*1 - 1 - 1
f(1) = 3 - 1 - 1
f(1) = 2
Answer: f(1) = 2
