Ingat lagi rumus fungsi (fog)(x).(fog)(x)=f(g(x)) <=>

Ingat lagi rumus fungsi (fog)(x).(fog)(x)=f(g(x)) <=> f(g(x))=8x^3-20x^2+22x-10 <=> f(2x-1)=8x^3-20x^2+22x-10 f(1)=?