Determine Upper and lower bounds on the zero's of f(x)=3x^(3)+x^(2)+5 I need a quick answer this has me stumped and almost out of time.

Question

Determine Upper and lower bounds on the zero's of f(x)=3x^(3)+x^(2)+5  I need a quick answer this has me stumped and almost out of time.

anonymous · Answer

Do you want to find the maximum and minimum points?

anonymous · Answer

If the third line of a synthetic division of f(x) by x - r is all positive for some r > 0, then r is an upper bound for the zeros of f(x);

anonymous · Answer

Is that what maximum and minimum bounds are?

anonymous · Answer

What @Luis_Rivera said :P it seems smarter than what I would've said :P

anonymous · Answer

:) it doesn't make any more sense to me, I just don't have the foundation to even understand the problem at a basic level.

anonymous · Answer

lol @babyshawol ,

anonymous · Answer

^.^ It's true :)