Question

If P(x)=2x+3, then find the value of P(x) + P(-x) .​

Answer 1

Answer:

Given, p(x)=2x+3

Therefore, p(−x)=−2x+3

Now,

$\sf \: p(x)+p(−x)$

$\sf \longrightarrow \: (2x+3)+(−2x+3)$

$\sf \longrightarrow \: \cancel{2x}+3- \cancel{2x}+3$

$\sf \longrightarrow \: 6$