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repeat298
@repeat298
July 2022
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(а+3)^2-(а-2)(а+2) при а= -3.5 помогите плизззз
знак ^2 значит в степени
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miron2077
Verified answer
Исходное не пишу
а²+6а+9-а²+4=6а+13=6*(-3,5)+13=-21+13=-8
6 votes
Thanks 5
Checov7400
(а+3)² - (а²-4)=(-3,5+3)² - ((-3,5)²-4)=(-0,5)² - (12,25-4)=0,25-8,25=-8
2 votes
Thanks 1
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Verified answer
Исходное не пишуа²+6а+9-а²+4=6а+13=6*(-3,5)+13=-21+13=-8