jika f(x)= x²-1 dan (f o g) (x)= 4x² + 4x, maka g(x-1) sama dengan...

f(x) = x² -1 --> f⁻¹(x) = √(x +1)
fog(x) = 4x² + 4x
g(x) = f⁻¹ o (fog)
g(x) = √(4x² + 4x +1) = √(2x + 1)²
g(x) = 2x + 1
g(x-1) = 2(x-1) + 1 = 2x -1

Semoga Membantu.. :)