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Sneik44
@Sneik44
July 2022
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Упростите выражение 4a^2-4a+1 и найдите его значение при a = 2,5.
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BriannaV
4a^2-4a+1=(2a-1)^2
При a = 2,5
(2a-1)^2=(2
*2,5-1)^2=(5-1)^2=4^2=16
Ответ: 16
14 votes
Thanks 19
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Answers & Comments
При a = 2,5
(2a-1)^2=(2*2,5-1)^2=(5-1)^2=4^2=16
Ответ: 16