SOLUTION: factor completely: x^10y^3-4x^9y^2-21x^8y

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: factor completely: x^10y^3-4x^9y^2-21x^8y       Log On


   

Question 101184: factor completely:
x^10y^3-4x^9y^2-21x^8y
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor completely:
x%5E10y%5E3-4x%5E9y%5E2-21x%5E8yLook for common factors in each term. You can see that x%5E8y is a common factor so factor this first:
x%5E8y%28x%5E2y%5E2-4xy-21%29 Now factor the trinomial:
x%5E8y%28xy%2B3%29%28xy%2B7%29...and there you have it!