(5x-2)³=..................

= -2×-2×-2= -8
5×-8= -40 maaf klo salah
semoga membantu

(5x-2)³=(1.5x³)-(3.5x².2)-(3.5x.2²)-(1.2³)
           = 125x³-150x²-60x-8                                                                 



(pakai segitiga pascal) (yang ditebalin itu pola segitiga pascal)