a(a+1)-(a-3)² a=-1
a²+a-(a²-6a+9)=a²+a-a²+6a-9=7a-9=7×(-1)-9=-7-9=-16
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
a(a+1)-(a-3)² a=-1
a²+a-(a²-6a+9)=a²+a-a²+6a-9=7a-9=7×(-1)-9=-7-9=-16