How do i find solutions to 20x^3-125x=0?
Factor:
5x(4x^2-25)
roots:
5x=0
x= 0
4x^2-25 =0
x = -2.5 , 2.5
so possible roots:
0, -2.5,2.5
5x(4x^2-25)
roots:
5x=0
x= 0
4x^2-25 =0
x = -2.5 , 2.5
so possible roots:
0, -2.5,2.5