Question

If p(x)=x+4 then p(x) + p(-x) = ?​

Answer 1

Answer:

p(x)= (x+4) + (-x+4)

= x+4-x+4

since two opposites add up to zero, remove them from the expression ( x and -x)

= 4+4

= 8

Answer 2

Answer:

x+4-(x) +4= x+4-x+4 =8