nicholasmazzola21205 nicholasmazzola21205
  • 18-12-2020
  • Mathematics
contestada

Given f(x)=x^3+kx-4, and x-1 is a factor of f(x), then what is the value of k?

Respuesta :

jorel1380
jorel1380 jorel1380
  • 18-12-2020

Answer:

3

Step-by-step explanation:

If x-1 is a factor, then x=1 is a solution. So:

0=1³+1k-4

1k=3

k=3 .........

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