# Chapter 2 - Real Numbers - Chapter 2 Test - Page 90: 19

$-3a^{2} - 2b^{2}$

#### Work Step by Step

We first rewrite the order of the expression and then combine like terms to obtain: $-2a^{2} + 3b^{2} - 5b^{2} - a^{2}$ $-2a^{2} - a^{2}+ 3b^{2} - 5b^{2}$ $-3a^{2} - 2b^{2}$

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