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[tex](x + 13)(x - 5) - (x + 4)^{2} + {3}^{4} \\ {x}^{2} - 5x + 13x - 65 - (x + 4 )^{2} + {3}^{4} \\ {x}^{2} - 5x + 13x - 65 - ( {x}^{2} + 8x + 16) + {3}^{4} \\ {x}^{2} - 5x + 13x - 65 - ( {x}^{2} + 8x + 16) + 81 \\ {x}^{2} - 5x + 13x - 65 - {x}^{2} - 8x - 16+ 81 \\ - 5x + 13x - 65 - 8x - 16 + 81 \\ 0 - 65 - 16 + 81 \\ 0 + 0 \\ 0[/tex]
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Respuesta:
La respuesta a tu pregunta es 0.
Explicación paso a paso:
[tex](x + 13)(x - 5) - (x + 4)^{2} + {3}^{4} \\ {x}^{2} - 5x + 13x - 65 - (x + 4 )^{2} + {3}^{4} \\ {x}^{2} - 5x + 13x - 65 - ( {x}^{2} + 8x + 16) + {3}^{4} \\ {x}^{2} - 5x + 13x - 65 - ( {x}^{2} + 8x + 16) + 81 \\ {x}^{2} - 5x + 13x - 65 - {x}^{2} - 8x - 16+ 81 \\ - 5x + 13x - 65 - 8x - 16 + 81 \\ 0 - 65 - 16 + 81 \\ 0 + 0 \\ 0[/tex]
Espero te ayude :)