Question 405542
  <pre><font size = 3 color = "indigo"><b>
Hi

-4n^4 + 40n^3 - 100n^2 
-4n^2 (n^2 - 10n + 25)   |good work with this
-4n^2 (n-5)(n-5)    |to complete, the quadratic expression can be factored     
Note:SUM of the inner product(-5n) and the outer product(-5n) = -10n
Finaly, can be written
-4n^2 (n-5)^2