Jika f(x)=x^2+2x maka f(x-1)= By Admin ReiPosted on October 29, 2022 Jika f(x)=x^2+2x maka f(x-1)= F(x) = x²+2xf(x-1) = (x-1)²+2.(x-1) = (x-1)(x-1) + 2x-2 = (x²-2x+1) + 2x-2 = x² – 1
