Question

1). g(x)=2x^2-x maka g(x+1) =
2). F(x)=x/x+2 dan x=-2 maka f(3)=

Answer 1

1) g(x+1) = 2(×+1)^2 - (×+1)
= 2 (×^2 + 2× + 1) - × - 1
= 2x^2 + 4x + 2 - x - 1
= 2x^2 - 3x - 1