How do i find zeros of a polynomial

You can find the zeros of a polynomial by first factoring it completely. Then, you use the Zero Product Property (Z.P.P) to make each term equal to zero. Finally, you just solve for the given variable, and you will have the zeros. 
For example:
x²+4x+4 = 0
1. Factor The Polynomial:
(x + 2)(x + 2) = 0
2. Use Zero Product Property:
x + 2 = 0
x + 2 = 0
3. Solve for variable:
x = -2, -2
Therefore, the zeros of the polynomial are -2, -2.
Hope I explained it well and have a fantastic day!

2(10 - 13x) + 9x = -34x + 6020 - 26x + 9x = -34x + distributive property-17x = -34x + subtraction property (subtracted 20 from both sides)17x = addition property (added 34x to both sides)x = 40/ division property (divided both sides by 17)