To simplify the expression given in the numerator, we can break it down step-by-step. The numerator is:
\[ (16 - 12)^2 + 5 (8 + 2^2) \]
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Calculate \(16 - 12\): \[ 16 - 12 = 4 \]
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Square the result: \[ (4)^2 = 16 \]
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Now calculate \(2^2\): \[ 2^2 = 4 \]
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Add this to 8: \[ 8 + 4 = 12 \]
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Multiply by 5: \[ 5 \times 12 = 60 \]
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Now, add the two parts together: \[ 16 + 60 = 76 \]
Thus, the simplified numerator is:
\[ \boxed{76} \]