Respuesta:
Explicación paso a paso:
Sumamos:
[tex]A = 5x^{3} +6x^{2} +6x+9\\B =-2x^{3} -2x^{2} -4x+6\\C=x^{3} -3x^{2} +3x-8[/tex]
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A+B+C = [tex]4x^{3}+x^{2} +5x+7[/tex]
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Verified answer
Respuesta:
Explicación paso a paso:
Sumamos:
[tex]A = 5x^{3} +6x^{2} +6x+9\\B =-2x^{3} -2x^{2} -4x+6\\C=x^{3} -3x^{2} +3x-8[/tex]
------------------------------------
A+B+C = [tex]4x^{3}+x^{2} +5x+7[/tex]