brizaapolinar13 brizaapolinar13
  • 17-05-2018
  • Mathematics
contestada

factor the polynomial x(3x+5)-4(3x+5)

Respuesta :

Dancer414
Dancer414 Dancer414
  • 17-05-2018
x(3x+5)-4(3x+5)
3x^2+5x-12x+20
3x^2-7x+20
Answer Link
xinjiajin xinjiajin
  • 07-02-2020

Answer:

[tex](3x+5)(x-4)[/tex]

Step-by-step explanation:

First, we must distribute this:

[tex]x(3x+5)-4(3x+5)\\3x^2+5x-12x-20\\3x^2-7x-20[/tex]

Now, we must factor:

[tex]3x^2-7x-20\\(3x+5)(x-4)[/tex]

Answer Link

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