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svaigantuhrig
@svaigantuhrig
August 2022
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Упростите выражение:
2а(3а-5)-(а-3)(а-7)
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кляча
Verified answer
= 6а^2 - 10a - (a^2 - 3a -7a + 21) = 6a^2 - 10a - a^2 + 3a + 7a - 21 =
= 5a^2 - 21
2 votes
Thanks 4
regina12022
Verified answer
2а(3а-5)-(а-3)(а-7)=6а²-10а-(а²-7а-3а+21)=6а²-10а-а²+7а+3а-21=5а²-21
3 votes
Thanks 3
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Answers & Comments
Verified answer
= 6а^2 - 10a - (a^2 - 3a -7a + 21) = 6a^2 - 10a - a^2 + 3a + 7a - 21 == 5a^2 - 21
Verified answer
2а(3а-5)-(а-3)(а-7)=6а²-10а-(а²-7а-3а+21)=6а²-10а-а²+7а+3а-21=5а²-21