Find the zeros of the function

Which points represent the zeros of the function f(x) = (x² + 2x − 8)(x − 6) ?

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Zeros are the values of x that make y equal to zero.
Set f(x) equal to zero and solve for x.

(x² + 2x - 8)(x - 6) = 0   {set f(x) equal to zero}
(x + 4)(x - 2)(x - 6) = 0   {factored x² + 2x - 8 into two binomials}
x + 4 = 0   or   x - 2 = 0   or   x - 6 = 0   {set each factor equal to zero}
x = -4 or x = 2  or  x = 6  {solved each equation for x}
The points would be (-4,0) , (2,0) , and (6,0).

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