x^3 - 10x^2 + 25x
x(x^2 - 10x + 25)
x(x - 5)^2

25 + 0.36x^2 + 6x
0.36x^2 + 6x + 25
(0.6x + 5)(0.6x + 5)
(0.6x + 5)^2

7b^4 - 14b^6
7b^4(1 - 2b^2)
7b^4(1 - 2b)(1 + 2b)