Ответ: [tex]-7(x-y)^2.[/tex]
Объяснение:
[tex](a-b)^2=a^2-2ab+b^2\\-7x^2+14xy-7y^2=-7(x^2-2xy+y^2)=-7(x-y)^2[/tex]
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ: [tex]-7(x-y)^2.[/tex]
Объяснение:
[tex](a-b)^2=a^2-2ab+b^2\\-7x^2+14xy-7y^2=-7(x^2-2xy+y^2)=-7(x-y)^2[/tex]