Tammy completed the following steps to simplify the expression -5xy-3xy - 2(4y+ 2) - 2.5xy. -5xy- 3xy - 2(4y) + 2(2) – 2.5xy -5xy- 3xy - 8y+ 4- 2.5xy (-5xy - 3xy - 2.5xy) - 8y +4 (-5 -3- 2.5)xy- 8y + 4 -10.5xy-8y+ 4 Explain why Tammy's solution is incorrect. Then show how to correctly simplify the expression.

Tammy completed the following steps to simplify the expression -5xy-3xy - 2(4y+ 2) - 2.5xy. -5xy- 3xy - 2(4y) + 2(2) – 2.5xy -5xy- 3xy - 8y+ 4- 2.5xy (-5xy - 3xy - 2.5xy) - 8y +4 (-5 -3- 2.5)xy- 8y + 4 -10.5xy-8y+ 4 Explain why Tammy's solution is incorrect. Then show how to correctly simplify the expression.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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