Evaluate
x^{4}-4x^{3}-19x^{2}-2x+4
Differentiate w.r.t. x
4x^{3}-12x^{2}-38x-2
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x^{4}-4x^{3}+x^{2}+4x^{2}-2x-24x^{2}+4
Combine -2x^{3} and -2x^{3} to get -4x^{3}.
x^{4}-4x^{3}+5x^{2}-2x-24x^{2}+4
Combine x^{2} and 4x^{2} to get 5x^{2}.
x^{4}-4x^{3}-19x^{2}-2x+4
Combine 5x^{2} and -24x^{2} to get -19x^{2}.
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