Question
If p(x) = x + 4 then p(x) + p(-x) = ?
✓
Answer
- 8
Solution:
Let: p(x) = (x + 4)
$\therefore$ p(-x) = (x + 4)
= -x + 4
Thus, we have: p(x) + p(-x) ={(x + 4) + (-x + 4)}
= 4 + 4
= 8
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