To evaluate the expression f(2) - f(-1) + f(1/3), substitute the given values into the function f(x) and perform the calculations.
To evaluate the expression f(2) - f(-1) + f(1/3), we substitute the given values into the function f(x).
First, we evaluate f(2), which means substituting 2 into the function: f(2) = (2^2) - 5(2) + 7 = 4 - 10 + 7 = 1.
Next, we evaluate f(-1): f(-1) = (-1^2) - 5(-1) + 7 = 1 + 5 + 7 = 13.
Finally, we evaluate f(1/3): f(1/3) = (1/3)^2 - 5(1/3) + 7 = 1/9 - 5/3 + 7 = 29/9.
Now we substitute these values back into the original expression: f(2) - f(-1) + f(1/3) = 1 - 13 + 29/9 = 1 - 13 + 29/9 = -23/9.
Learn more about Evaluating a function