Ответ:
(2b-1)²-(b+2)²= 4b²-4b+1-(b²+4b+4)=4b²-4b+1-b²-4b-4= 3b²-8b-3
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
(2b-1)²-(b+2)²= 4b²-4b+1-(b²+4b+4)=4b²-4b+1-b²-4b-4= 3b²-8b-3