TheBillyMan999 TheBillyMan999
  • 05-08-2020
  • Mathematics
contestada

(x+1)(x−1)(x−5)=0 HELP

Respuesta :

zarampa
zarampa zarampa
  • 05-08-2020

Answer:

x³ - 5x² - x + 5

Step-by-step explanation:

(x+1)(x-1)(x-5) = 0

fisrt step:

(x+1)(x-1) = x*x + x*-1 + 1*x + 1*-1 = x² - x + x - 1 = x² - 1

then:

(x+1)(x-1)(x-5) = (x²-1)(x-5)

(x²-1)(x-5) = x²*x + x²*-5 -1*x -1*-5 = x³ - 5x² - x + 5

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