(a - 9)² - (81 + 2a) = a² - 18a + 81 - 81 - 2a = a² - 20a
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
(a - 9)² - (81 + 2a) = a² - 18a + 81 - 81 - 2a = a² - 20a