Respuesta :

salatulmaghrib
(x-4)(x+1)
find two numbers that if you multiply them you get -4, and if you add them you get -3. Those numbers are -4 and 1.

Answer: (x - 4) ( x + 1)

Step-by-step explanation:

x^2-3x-4

x             - 4

x              +1

-4x + x = -3x         x * x = x^2

                            -4 * 1 = -4

   (x - 4) (x + 1)

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