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Rational function points of discontinuity

h(x)=x2+4x32x28x+16h(x)=\dfrac{x^2+4x-32}{x^2-8x+16}
At each of the following values of xx, select whether hh has a zero, a vertical asymptote, or a removable discontinuity.
 
Zero
Vertical Asymptote
Removable Discontinuity
x=8x=-8
x=4x=4