Diketahui fungsi f(x)=4x−1f\left(x\right)=4x-1f(x)=4x−1 dan g(x)=x2−1g\left(x\right)=x^2-1g(x)=x2−1. Hasil dari (f.g)(x)\left(f.g\right)\left(x\right)(f.g)(x) adalah ....
x3+4x2−4x−1x^3+4x^2-4x-1x3+4x2−4x−1
4x3−x2−4x+14x^3-x^2-4x+14x3−x2−4x+1
4x3−4x2−x+14x^3-4x^2-x+14x3−4x2−x+1
4x3−x2−x−44x^3-x^2-x-44x3−x2−x−4
x3−x2−4x−1x^3-x^2-4x-1x3−x2−4x−1