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Help:Displaying a formula/70/pt-br
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{\color{Blue}x^2}+{\color{YellowOrange}2x}-{\color{OliveGreen}1}
x
2
+
2
x
−
1
{\displaystyle {\color {Blue}x^{2}}+{\color {YellowOrange}2x}-{\color {OliveGreen}1}}
