Rewrite the expression: ln(x^3 - 16x) + ln(x^2 +10x + 25) - ln(x^5 - 41x^3 +

[galaxyhunter101]

400x) as a single logarithm.? I've tried attacking this from every way my brain can think of, but I can't seem to get a good answer.
I ended with 10x^4 + 50x^3 + 160x^2.
Did anyone get that?