Question

2x³-8=0 sem usar a formula de bhaskara

Answer 1

2x³ - 8 = 0 
2x³ = 8 
x³ = 4
x = ∛4

Answer 2

2x³ - 8 = 0
x³ -  4 = 0
x³ = 4 ou 2² 
x =∛2²