Answer:
p = 0, p = -7/3
Explanation:
Pre-Solving
We are given the following equation: 
3p² + 7p = 0 
We want to solve the equation by factoring. 
Solving
To factor, we want to look for a common term that we can pull out. 
You may notice that both terms have 'p' in common, so we can pull out p from both terms. 
This will then make the equation: 
p(3p + 7) = 0 
Now, we can use zero product property to solve the equation. 
p = 0 
3p + 7 = 0
Subtract.
3p = -7
Divide. 
p = -7/3 
Our answers are p = 0 and p = -7/3