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Настя200316
@Настя200316
July 2022
2
7
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Помогите с алгеброй!
(с-2)*(с+3)-с²=?
7(х+8)+(х+8)*(х-8)=?
(х+5)*4х-(2х+5)²=?
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AlexandraDubovik
(с-2)*(с+3)-с²=с²+3с-2с-6-с²=с-6
7(х+8)+(х+8)*(х-8)=7х+56+х
²-8х+8х-64=х²+7х-64
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хакершколы
1.=с*с=с (во 2ой степени)-с(во2ой)-с(во2ой)=0, = -6
2.=7х+56+х+8*х-8=56+9х
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Answers & Comments
7(х+8)+(х+8)*(х-8)=7х+56+х²-8х+8х-64=х²+7х-64
2.=7х+56+х+8*х-8=56+9х