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Question

If p(x)=x+3, then p(x)+p(-x) is equal to


A

3

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B

2x

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C

0

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D

6

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Solution

The correct option is D

6


Find the value of p(x)+p(-x)

p(x)=x+3p(x)=x+3

p(x)+p(x)=(x+3)+(x+3)

=x+3x+3=6

Hence p(x)+p(-x) is equal to 6 and therefore option (D) is correct.


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