SOLUTION: I need help to factor this problem: 40a^8 + 16a^7 + 25a^9 the sign ^ means to the power I hope I am espressing it right. Thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I need help to factor this problem: 40a^8 + 16a^7 + 25a^9 the sign ^ means to the power I hope I am espressing it right. Thank you      Log On


   

Question 162459: I need help to factor this problem: 40a^8 + 16a^7 + 25a^9
the sign ^ means to the power I hope I am espressing it right.
Thank you
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:
40a%5E8%2B16a%5E7%2B25a%5E9 First, factor a%5E7
a%5E7%2840a%2B16%2B25a%5E2%29 Rearrange the trinomial in order of descending powers of a.
a%5E7%2825a%5E2%2B40a%2B16%29 Now factor the trinomial in parentheses.
a%5E7%285a%2B4%29%285a%2B4%29 or a%5E7%285a%2B4%29%5E2