How do you factor out the greatest common factor of #112x^9y^9 + 144x^5y^5+128x^7y^3#?
2 Answers
Explanation:
First, you look at only the coefficients. Find all of their prime factors, in this case they are respectively:
Now, look at the two variables. Whichever term has the lowest power of x is the power of x that you will use because the other terms have at LEAST that power of x so they have that in common. In this case it is 5. For y it is 3. So the answer is