Can you factor the common factor out of this problem? 3p+12q-15q^2r^2

The answer after being factored is, 

When we are factoring, all we are doing is finding a GCF and taking it from the expression and dividing it into every term. Let's break our expression into parts first







Now, each number is divisible by 3, but since our biggest number is a negative, we will make our GCF -3 instead of 3. So let's divide each part by -3.







Now let's put it together in an expression:



When we factor we always put our factored expression in parenthesis with the term the expression was factored by on the outside like so:



Thank you for the question I hope this helped! Have an amazing day! :D