# Chapter 5 - Section 5.3 - Polynomials and Polynomial Functions - Exercise Set: 55

$-3x^{2}+3$

#### Work Step by Step

We are given the expression $(-3x+8)+(-3x^{2}+3x-5)$. We can combine like terms to simplify. $-3x^{2}+(-3x+3x)+(8-5)=-3x^{2}+3$

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