Question

if f(x) = x^2+4 solve f(x+1)-f(x-1)-12=0​

Answer 1

Answer:

4x-12 -> x=3

Step-by-step explanation:

f(x+1)= (x+1)^2+4

x^2+2x+5

f(x-1)=(x-1)^2+4

x^2-2x+5

:-substituting values =

x^2+2x+5-(x^2-2x+5)-12=0

=4x-12=0

x=12/4

=3