(m+2n)²+(3m-n)²=m²+4mn+4n²+9m²-6mn+n²=10m²-2mn+5n²; (a±b)²=a²±2ab+b².
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
(m+2n)²+(3m-n)²=m²+4mn+4n²+9m²-6mn+n²=10m²-2mn+5n²; (a±b)²=a²±2ab+b².