shindig970 shindig970

24-05-2016
Mathematics

contestada

What are the zeros of the function, f(x)=x^2-2x-15

Respuesta :

whiskeyo whiskeyo

24-05-2016

Zeros of the function are -3 and 5.

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helphelp123 helphelp123

24-05-2016

factor
wat adds to -2 and times to get -15
-5 and 3
(x+3)(x-5)=0
set to zero

x+3=0
x=-3

x-5=0
x=5

x=-3 or 5

Answer Link

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