1)157²-156²=(157+156)(157-156)=313×1=313
2)126²+2.126.74+74²=(126+74)²=200²=40000
3)143²-143.86+43²=143²-2.143.43+43²=(143-43)²=100²=10000
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1)157²-156²=(157+156)(157-156)=313×1=313
2)126²+2.126.74+74²=(126+74)²=200²=40000
3)143²-143.86+43²=143²-2.143.43+43²=(143-43)²=100²=10000