danielers43 danielers43
  • 05-05-2017
  • Mathematics
contestada

What are the zeros of the function y = x2 + 10x – 171, and why?

Respuesta :

melanie0616 melanie0616
  • 05-05-2017
To find the zeros, you have to factor the equation.
y=(x+19)(x-9)
This is because 19*-9=-171 and 19-9=10.
Now to make x=0, you have to make the equation
x+19=0
and x-9=0
To solve, isolate x on both equations.
This makes x=-19 and x=9.
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