781439
781439 781439
  • 14-05-2020
  • Mathematics
contestada

What is the factored form of this equation?
x^2-121

Respuesta :

shrekmusical113 shrekmusical113
  • 14-05-2020

Answer:(x+11)(x-11)

Step-by-step explanation:

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brainy2048
brainy2048 brainy2048
  • 14-05-2020

Answer:

(x + 11)(x - 11)

Step-by-step explanation:

Since [tex]x^{2}[/tex] and 121 are both perfect squares ([tex]\sqrt{x^{2}[/tex] = [tex]x[/tex] and [tex]\sqrt{121}[/tex] = [tex]11[/tex]), we can write the difference of two perfect squares a and b in the factored form: [tex](\sqrt{a} +\sqrt{b} ) (\sqrt{a} - \sqrt{b} )[/tex]. Therefore, the factored form of x^2 - 121 is (x +11)(x - 11).

Hope this helped! :)

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