How do you factor 36a^3b^2+66a^2b^3-210ab^436a3b2+66a2b3−210ab4?
1 Answer
Explanation:
Extracting the common factors from each term:
giving
Looking for integer (we are optimists) coefficients as factors for
...and we have found a set that gives us the coefficient of the middle term!
It only remains to figure out the positive/negative signs to give