7iceskater 7iceskater
  • 26-07-2022
  • Mathematics
contestada

f(x)=x^2-x-56=0 what are the zeros in the function?
please help!!!

Respuesta :

djp6182583 djp6182583
  • 26-07-2022

Answer:

-7, 8.

Step-by-step explanation:

x^2 - x - 56 = 0

Let's see if we can factor this function:

We need 2 numbers whose product is -56 and whose sum is -1 ( which is the coefficient of x).

They are  -8 and 7 , so the factors are:

(x - 8)(x + 7) = 0

x - 8 = 0 giving x =  8 and

x + 7 = 0 giving x = -7.

The zeros are -7, 8

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