If f(x) = x² - 2x then f(3) + f(1) equals?
- 1
- 3
- 2
- None of these
Explanation
Find f(3):
f(3) = 3² − 2(3)
= 9 − 6
= 3
Find f(1):
f(1) = 1² − 2(1)
= 1 − 2
= −1
Now add:
f(3) + f(1) = 3 + (−1) = 2
Last verified on 15-05-2026
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