Question

encontre as raízes da equação: x^3+4x=0​

Answer 1

x³ - 4x= 0

x.(x²-4)=0

x.(x-2).(x+2)=0

x=0

x-2=0 = x= 2

x+2=0 =x= -2

são as raízes 0, 2 e -2