help!! is 1/5 a zero of a polynomial 25x^4+9x^2+17x+3?? thanks in advance

Question

anonymous · Answer

Do you know synthetic division ?

anonymous · Answer

You could just plug it in and check, but there is an easier way.  Notice that all the terms are positive, so you can't have any positive "x" zeros.

anonymous · Answer

Better yet, what happens when you plug in 1/5 for x.  What is your y value ?

anonymous · Answer

And the reason why there are no positive "x" zeros is that everything is added.  When you do nothing but add up several positive numbers, you will never get zero!  Simple solution method.  No need to make some solutions harder than need be.

anonymous · Answer

really appreciate it!!

anonymous · Answer

You're welcome!  If you like my work, hit "best response!