Question

Sa se rezolve in multimea numerelor reale ecuatia $\sqrt[3]{8-x} = \sqrt[3]{9-4x}$

Answer 1

radicalul fiind impar , expresiile sunt definitepe R
ridicam la putere a treia
8-x=9-4x
4x-x=9-8
3x=1
x=1/3∈R

verificare
∛(23/3)=∛(23/3)
adevarat, bine rezolvat;
as simple as that!