Объяснение:
(2⁷/₉p²-((5/6)*a-1)²=(25/9)*p²-((5/6)*a-1)²=(5p/3)²-((5/6)*a-1)²=
=(5p/3-((5/6)*a-1)*(5p/3+((5/6)*a-1)=((5p/3)-(5a/6)+1)*((5p/3)+(5a/6)-1).
Объяснение:
(2⁷/₉p²-((5/6)*a-1)²=(25/9)*p²-((5/6)*a-1)²=(5p/3)²-((5/6)*a-1)²=
=(5p/3-((5/6)*a-1)*(5p/3+((5/6)*a-1)=((5p/3)-(5a/6)+1)*((5p/3)+(5a/6)-1).