apabila f(x) 2x³ - 6x maka f(x+1) adalah

f(x) = 2x³-6x
misal
t= x+1
x = t-1
maka
f(x) = 2(t-1)³-6(t-1)
= 2(t²-2t+1)(t-1) -6t+6
= 2(t³-t²-2t²+2t+t-1)-6t+6
=2t³-6t²+6t-2-6t+6
=2t³-6t²+4
jadi
f(x) = 2x³-6x²+4

semogaa terbantuu -_-