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 students work is correct and why class=

Respuesta :

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)