1) GCF of each term is 4x.
2) Factor out 4x from the equation (Divide each term by 4x), the result is:
4x (x² - 4x-5)
3) Factor (x² - 4x - 5)
4x (x+1) (x-5)
4) Solve for the roots:
4x = 0 x+1=0 x-5 = 0
x = 0 x = -1 x = 5
The solution (roots) are: 0, -1, and 5.
