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Grace, Chelsea, and Roan are simplifying the same polynomial expression. Which student’s work is correct and why?
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Grace, Chelsea, and Roan are simplifying the same polynomial expression. Which student’s work is correct and why?

Grace, Chelsea, and Roan are simplifying the same polynomial expression. Which student-example-1
User Lepanto
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Grace is correct.

Chelsea has an error in the first step (it has to be 6 - 3x - 12x + 16 bc minus multiply by minus is positive)

Roan also has an error in the first step (has to be 6 - 3x - 12x + 16)
User Magnus Nordmo
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