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korotsinskyay
@korotsinskyay
July 2022
1
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упростите выражение (а-3)^2-а(5а-6) и найдите его значение при а=-1/2.В ответе запишите найденное значение.
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RussianRacer16
A^2-6a+9-5a^2+6a=-4a^2+9= -4*1/4+9=8
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