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xexr
@xexr
August 2022
2
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Помогите. упростите выражение и найдите его значение (2x-5)^2-4(x+1)(x-7), если х=-3,5
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nastyavilkova1
Ну...............................
1 votes
Thanks 0
litanalove
4*7=28, а не 49
litanalove
4x^2-20x+25-4x^2+28х-4x+28= 4x+53=53-14=39
1 votes
Thanks 1
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