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mrroman1
@mrroman1
July 2022
2
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Решите уравнение : 18+x*(x+6)=(6+x)(x-2)
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SmartTable
См ответ в фотографии
1 votes
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MarcusHelper
ммм.... а в голове посчитать, не?
MarcusHelper
листочка не жалко?
армения20171
18+х(х+6)=(6+х)(х-2)
18+х^2+6х=6х-12+х^2-2х
18+12=-2х
-2х=30
х=-15
проверка
18+(-15)•(-9)=(-9)(-17)
153=153
ответ х=-15
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Answers & Comments
18+х^2+6х=6х-12+х^2-2х
18+12=-2х
-2х=30
х=-15
проверка
18+(-15)•(-9)=(-9)(-17)
153=153
ответ х=-15