## Precalculus: Mathematics for Calculus, 7th Edition

-$\frac{5}{2}$(2x-4y) To rewrite this without parenthesis, Use the Disributive Property -$\frac{5}{2}$ $\times$$\frac{2}{1}$$\times$x - (-$\frac{5}{2}$)$\times$$\frac{4}{1}$$\times$y -$\frac{10}{2}$x+$\frac{20}{2}$y When a minus sign is next to a negative term, they both cancel out and become a positive. Simplify -5x+10y