## Algebra: A Combined Approach (4th Edition)

-$x^{2}$ - x
(5$x^{2}$ - 2x + 1) + (-6$x^{2}$ + x - 1) 5$x^{2}$ - 2x + 1 + -6$x^{2}$ + x - 1 Remove paranthesis (5$x^{2}$ -6$x^{2}$) + (-2x+ x) + (-1 + 1) Combine like terms -1$x^{2}$ - x