Question

Jika f(x) = x^2 + 2 maka f(x+1) = ....

Answer 1

F(x) = x² + 2
f(x+1) = (x+1)² + 2
         = (x+1) (x+1) + 2
         = x² + 2x + 1 + 2
         = x² + 2x + 3

Answer 2

F(x+1) = (x+1)²+2 = x²+2x+1+2 = x²+2x+3