Question

Calculate the value of f(x) + f(-x) when f(x) =x+4​

Answer 1

given:-

f(x)=x+4

0=x+4

x= -4

now,f(x)+f(-x)=

=(-4)+(-(-4)

= -4+4

= 0 ans.

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Answer 2

Answer:

f ( x) = x + 4

= x +4 =0

= x = - 4

Value of f(x) +f(-x)

Put the value of X

(4) +(-4)

= 0