## Introductory Algebra for College Students (7th Edition)

10x$^3$-9x$^2$+2x+11
Distribute the negative sign to the parentheses and then combine like terms vertically. $\qquad5x^3-6x^2-9x+14$ $\underline{-(-5x^3+3x^2-11x+3)}$ $\qquad$$\qquad$$\quad$$\downarrow$ $\quad5x^3-6x^2-9x+14$ $\underline{+\,5x^3-3x^2+11x-3)}$ $\quad10x^3-9x^2+2x+11$