# Chapter 5 - Polynomials and Factoring - Connecting: The Concepts - Exercises - Page 350: 5

$2x^3+x^2-8x$

#### Work Step by Step

Combine like terms to obtain: $(2x^3-5x+1)+(x^2-3x-1) \\=2x^3+x^2+(-5x+(-3x))+(1-1) \\=2x^3+x^2+(-8x)+0 \\=2x^3+x^2-8x$

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