Respuesta :

gmany

Answer:

[tex]\large\boxed{-6x^6+4x^4-3x^3+4x^2+12}[/tex]

Step-by-step explanation:

[tex]4x^2-6x^6+2x^3+12-5x^3+4x^4\\\\=-6x^6+4x^4+2x^3-5x^3+4x^2+12\qquad\text{combine like terms}\\\\=-6x^6+4x^4+(2x^3-5x^3)+4x^2+12\\\\=-6x^6+4x^4-3x^3+4x^2+12[/tex]

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