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

26x$^4$+9x$^2$+6x
Distribute the negative sign to the parentheses and then combine like terms. (7x$^4$+4x$^2$+5x)-(-19x$^4$-5x$^2$-x) 7x$^4$+4x$^2$+5x+19x$^4$+5x$^2$+x (7x$^4$+19x$^4$)+(4x$^2$+5x$^2$)+(5x+x) 26x$^4$+9x$^2$+6