Question

F(x)=x pangkat2-9
Maka f(x+2)=

Answer 1

F(x) = x^2 - 9
f(x+2) = (x+2)^2 - 9
= x^2 + 4x + 4 - 9
= x^2 + 4x - 5

^ = pangkat

Answer 2

F(x) = x² - 9
f(x+2)= ( x + 2 )² - 9
        = (( x + 2) ( x + 2)) - 9
        = x²+4x + 4 - 9
       = x²+4x - 5