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Gliztt
@Gliztt
August 2022
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Найти значение выражения
(7-x)(7+x)+(x+3)^2 при x=-3,5
P.S. Срочно
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pocchtaa
(7-x)(7+x)+(x+3)²=49-x²+x²+6x+9=58+6x=58+6*(-3,5)=58-21=37
2 votes
Thanks 3
Дашка1357
49+7x-7x-x^2+(x+3)^2
49-x^2+(x^2+6x+9)
49-x^2+x^2+6x+9
6x+58
6*(-3,5)+58
-21+58=37
0 votes
Thanks 0
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Answers & Comments
49-x^2+(x^2+6x+9)
49-x^2+x^2+6x+9
6x+58
6*(-3,5)+58
-21+58=37