(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Let f(x)=a0+a1x+a2x^{2}+a3x^{3}+a4x^{4}. Show that if a0a4<0, then f(x)=0 have at least 2 real solutions.

2. Relevant equations

3. The attempt at a solution

Any hints? I can't tell how to begin an attempt for a solution.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Polynomial Analysis

**Physics Forums | Science Articles, Homework Help, Discussion**