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forestdasha
@forestdasha
August 2022
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15 балов, пожалуйста, срочно!!!
3(a-2)^2-3(2-a)
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GreatFilter
Есть два способа
:
1) 3(a-2)²-3(2-a) =3(a²-4a+4)-3(2-a)=3a²-12a+12-6+3a=3a²-9a+6=3(a²-3a+2)=
=3(a-2)(a-1)
2) 3(a-2)²-3(2-a) =3(a-2)(a-2)-3(2-a)=(3(a-2))((a-2)+1)=(3a-6)(a-1)=3(a-2)(a-1)
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Answers & Comments
1) 3(a-2)²-3(2-a) =3(a²-4a+4)-3(2-a)=3a²-12a+12-6+3a=3a²-9a+6=3(a²-3a+2)=
=3(a-2)(a-1)
2) 3(a-2)²-3(2-a) =3(a-2)(a-2)-3(2-a)=(3(a-2))((a-2)+1)=(3a-6)(a-1)=3(a-2)(a-1)