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Mathematics 10 Online
OpenStudy (anonymous):

Matt is asked to simplify x + x2 + x3 + 3x. Here is what he does: x + x2 + x3 + 3x = 4x + x2 + x3 = 4x3 + x3 = 5x3 Did Matt do this problem correctly or incorrectly? If he did it correctly, then what math laws did he follow? If he did it incorrectly, then what math laws did he break?

OpenStudy (dan815):

he added x^2 and x can you do that?

OpenStudy (dan815):

is x*x + x = 3x?

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