х²у²-4ху-х²-у²+1 = х²у²-2ху+1-(х²+2ху+у²) = (ху-1)²-(х+у)² = (ху-1-х-у)(ху-1+х+у).
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
х²у²-4ху-х²-у²+1 = х²у²-2ху+1-(х²+2ху+у²) = (ху-1)²-(х+у)² = (ху-1-х-у)(ху-1+х+у).