If p(x)=x+3, then p(x)+p(-x) is equal to
3
2x
0
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+3–x+3=6
Hence p(x)+p(-x) is equal to 6 and therefore option (D) is correct.
If p(x)=x+3, then p(3)+p(−3), is equal to