If (f(x) = 2x^2 – 5x + 3), find f(x + 1).
-
A.
2x2 – x -
B.
2x2 – x + 10 -
C.
4x2 + 3x + 2 -
D.
4x2 + 3x + 12
Correct Answer: Option A
Explanation
(f(x) = 2x^2 – 5x + 3)
(f(x + 1) = 2(x + 1)^2 – 5(x + 1) + 3)
= (2(x^2 + 2x + 1) – 5x – 5 + 3)
= (2x^2 + 4x + 2 – 5x – 2)
= (2x^2 – x)