Question

Sa se rezolve in R ecuatia:

Answer 1

c.E, x∈R

∛(x-1)=x-1
ridicam la puterea a treia
(x-1)=(x-1)³
fie x-1=y⇒x=y+1
y=y³
y³=y
y(y²-1)=0
y(y-1)(y+1)=0
y∈{-1;0;1}
x∈{0;1;2}
as simple as that!!!