If f(x) = x² - 3 then f(4) - f(2) equals?
- 12
- 13
- 14
- None of these
Explanation
f(x) = x² - 3
Find f(4):
f(4) = 4² - 3 = 16 - 3 = 13
Find f(2):
f(2) = 2² - 3 = 4 - 3 = 1
Now f(4) - f(2) = 13 - 1 = 12
Last verified on 23-05-2026
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