Question

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

a. 2x

b. 3

c. 0

d. 6​

Answer 1

$\bf{Hello!}$

p(x) = x+3

p(-x) = -x+3

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

=> 3+3 = 6

Option D is your answer

Have a good evening!

Answer 2

Answer:

option c. 0 is correct

Step-by-step explanation:

p(x)=x+3

therefore, p(-x)=-(x+3)

therefore, p(-x)=(-x-3)

then, p(x)+p(-x)

=x+3+(-x-3)

=x+3-x-3

=0