Question

aflati radacinele reale ale polinomului P(X)=27X³-1 ;
P(X)=16X  la puterea 4 -64

Answer 1

27X^3-1=0 echivalent 27X^3=1 echivalent X^3=1/3 echivalent x=1/3
16X^4 -64=0 echivalent 16X^4=64 simplificam tot polinomul prin 16 si obtinem x^4=4 echivalent x=radical din 2