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

$9x^2y-6xy$
Consider the given polynomial $(7x^2y-5xy)+(2x^2y-xy)$ Need to drop the parentheses. Thus, $(7x^2y-5xy)+(2x^2y-xy)=7x^2y-5xy+2x^2y-xy$ or, $=7x^2y+2x^2y-5xy-xy$ or, $=9x^2y-6xy$