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Evaluate
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Differentiate w.r.t. x
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-1-x-4x
Subtract 3 from 2 to get -1.
-1-5x
Combine -x and -4x to get -5x.
\frac{\mathrm{d}}{\mathrm{d}x}(-1-x-4x)
Subtract 3 from 2 to get -1.
\frac{\mathrm{d}}{\mathrm{d}x}(-1-5x)
Combine -x and -4x to get -5x.
-5x^{1-1}
The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax^{n} is nax^{n-1}.
-5x^{0}
Subtract 1 from 1.
-5
For any term t except 0, t^{0}=1.