Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.1 - Real Numbers - 1.1 Exercises: 27

Answer

-5x+10y

Work Step by Step

-$\frac{5}{2}$(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
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