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NastyaAvdeeva12
@NastyaAvdeeva12
August 2022
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№1 Вынесите общий множитель за скобки :
9x^2+3x
2ab-ab^2
6xy+3x^2y-12xy^2
5a^4-10a^3+10a^2
№2 Выполните действия :
(a+b)^2-(a-b)(a+b)
№3 Решите уравнения:
(x-12)(3x+9)=0
x^2-25=0
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Квилетова
1задание
9х^2 + 3 = 3х (3х+1)
2аb-ab^2=ab (2-b)
6xy+ 3x^2y-12xy^2=3xy (3+ x-4y)
5а^4-10а^3+10а^2=5а^2 (а^2-2а-2)
2 задание
(a+b)^2-(a-b)(a+b)=a^2 + 2ab+b^2-(a^2-b^2)=a^2+2ab+b^2 -a^2+b^2=2b^2+2ab
1 votes
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Answers & Comments
9х^2 + 3 = 3х (3х+1)
2аb-ab^2=ab (2-b)
6xy+ 3x^2y-12xy^2=3xy (3+ x-4y)
5а^4-10а^3+10а^2=5а^2 (а^2-2а-2)
2 задание
(a+b)^2-(a-b)(a+b)=a^2 + 2ab+b^2-(a^2-b^2)=a^2+2ab+b^2 -a^2+b^2=2b^2+2ab