kaileefpalacioox6hx4 kaileefpalacioox6hx4
  • 03-07-2020
  • Mathematics
contestada

What are the zeros of f(x) = x^2 + x - 20?
A. x= -4 and x = 5
B. x= -2 and x = 10
C. x= -5 and x = 4
O D. x= -10 and x = 2

Respuesta :

kamraaa
kamraaa kamraaa
  • 03-07-2020
x² + x - 20
= (x+5)(x-4)

x + 5 = 0
x = -5

x - 4 = 0
x = 4

hence the answer is C
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