## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 9 Quadratic Relations and Conic Sections - 9.7 Solve Quadratic Systems - 9.7 Exercises - Mixed Review - Page 664: 55

#### Answer

$$x^4+4x^3-3x^2-18x$$

#### Work Step by Step

Expanding the equations by multiplying each term in parenthesis by each of the other terms in the other set of parenthesis, we find: $$\left(x\right)x\left(x+3\right)^2-2\left(x\right)\left(x+3\right)^2\\ x^4+4x^3-3x^2-18x$$

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