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Rational functions: zeros, asymptotes, and undefined points

Problem

h, left parenthesis, x, right parenthesis, equals, start fraction, x, squared, plus, 4, x, minus, 32, divided by, x, squared, minus, 8, x, plus, 16, end fraction
At each of the following values of x, select whether h has a zero, a vertical asymptote, or a removable discontinuity.
 
Zero
Vertical Asymptote
Removable Discontinuity
x, equals, minus, 8
x, equals, 4
Stuck?
Stuck?