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Question
If f(x) = 3x + 8; the value of f(x) + f(– x) is ______.
Options
8
16
– 8
– 16
MCQ
Fill in the Blanks
Solution
If f(x) = 3x + 8; the value of f(x) + f(– x) is 16.
Explanation:
Given f(x) = 3x + 8
∴ f(– x) = – 3x + 8
Thus, f(x) + f(– x)
= 3x + 8 – 3x + 8
= 16
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Factorising a Polynomial Completely After Obtaining One Factor by Factor Theorem
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