precioussosa01 precioussosa01
  • 15-07-2020
  • Mathematics
contestada

X^4-13x^2+36 =
a. (x - 2)2(x - 3)2
b. (x2 + 4)(x 2 + 9)
C. (x - 2)(x + 2)(x - 3)(x + 3)
d. (x2 - 4)(x 2 + 9)

Respuesta :

Alfpfeu
Alfpfeu Alfpfeu
  • 15-07-2020

Answer:

answer C

Step-by-step explanation:

hello,

[tex]x^4-13x^2+36=(x^2-4)(x^2-9)[/tex]

as the sum of the zeroes are 13 and their product 36

4 + 9 = 13

4 * 9 = 36

and then we can write

[tex](x^2-4)=(x-2)(x+2)\\(x^2-9)=(x-3)(x+3)[/tex]

so

[tex]x^4-13x^2+36=(x^2-4)(x^2-9) = (x-2)(x+2)(x-3)(x+3)[/tex]

hope this helps

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