Respuesta :

  • Answer:

(x² + 4)(x + 3)(x - 3)

  • Step-by-step explanation:

Hi !

x⁴ - 5x² - 36 =

= x⁴ + 4x² - 5x² - 36

= x²(x² + 4) - 9(x² + 4)

= (x² - 9)(x² + 4)

= (x - 3)(x + 3)(x² + 4)

= (x² + 4)(x + 3)(x - 3)

Good luck !