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Given the expression
[tex]4x^2+5y-3+2y-2x^2-6[/tex]To simplify the expression you have to arrange the terms form greatest to least and like terms together:
[tex]4x^2-2x^2+5y+2y-3-6[/tex]Next is to solve the operations between the like terms
[tex]\begin{gathered} (4x^2-2x^2)+(5y+2y)+(-3-6) \\ 2x^2+7y-9 \end{gathered}[/tex]So the simplified form of the expression is
[tex]2x^2+7y-9[/tex]