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Rational function points of discontinuity

f(x)=x22x24x2+10x+24f(x)=\dfrac{x^2-2x-24}{x^2+10x+24}
At each of the following values of xx, select whether ff has a zero, a vertical asymptote, or a removable discontinuity.
 
Zero
Vertical Asymptote
Removable Discontinuity
x=6x=-6
x=4x=-4
x=6x=6