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anastasiyakult
@anastasiyakult
July 2022
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Пожалуйста упростите выражение 8-(а+5)в квадрате -(а-4)(а+7)-12а
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love67
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8-(а+5)^2-(а-4)(а+7)-12а=8-(a^2+10a+25)-(a^2-4a+7a-28)-12a=8-a^2-10a-25-a^2-3a+28-12a=11-25a-2a^2
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8-(а+5)^2-(а-4)(а+7)-12а=8-(a^2+10a+25)-(a^2-4a+7a-28)-12a=8-a^2-10a-25-a^2-3a+28-12a=11-25a-2a^2