Question

Aflați toate valorile lui x daca : x la puterea a 3-a < 300

Answer 1

x³< 300. Cel mai apropiat numar care are cubul mai mic de 300 este 216 adica 6³=>
x³≤ 6³=> x apartine {6,5,4,3,2,1,0,-1,-2,-3,-4,-5,-6,-7,-8,-9...,-∞}