deemiller deemiller
  • 23-05-2017
  • Mathematics
contestada

What are the x-intercepts of the quadratic function f(x)=x^2+6x−16
Question 3 options:

8 only


-8 only


-2 and 8


-8 and 2

Respuesta :

kphung76127
kphung76127 kphung76127
  • 23-05-2017
-8 and 2
The expression is factorable and is equal to (x+8)(x-2). Using the zero product property, x=-8 because (-8)+8 equals zero and x=2 because 2-2 equals zero.
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