Evaluate
3k^{2}+\Delta -16
Differentiate w.r.t. Δ
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\Delta +3k^{2}-4\times 2\times 2
The opposite of -3k^{2} is 3k^{2}.
\Delta +3k^{2}-8\times 2
Multiply 4 and 2 to get 8.
\Delta +3k^{2}-16
Multiply 8 and 2 to get 16.
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