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Diferencia de cuadrados
La suma de coeficientes del factor primo binomio es: 1 + 1 = 2
Diferencia de cuadrados
a² - b² =
(a + b)(a - b)
Productos Notables
(a + b)² =
a² + 2ab + b²
(x + 1)⁴ - ( x - 1)⁴
[(x + 1)² + (x - 1)²][(x + 1)² - (x - 1)²] =
[x² + 2x + 1 + x² - 2x + 1][(x + 1 + x - 1)(x + 1 -(x - 1))] =
[2x² + 2][(2x)(x + 1 - x + 1)] =
(2x² + 2)[(2x)(2)]
(2x² + 2)(4x) Saxas factor comun 2
2(x² + 1)(4x) =
(x² + 1)(8x)
El unico coeficiente es 1
Respuesta.
Opcion d