разложите на множители у^2-х^2-6х-9
y^2-9- x^2-6x = y^2-(x+3)^2=(y-x-3)(y+x+3)
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
y^2-9- x^2-6x = y^2-(x+3)^2=(y-x-3)(y+x+3)