## Elementary Algebra

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