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Evaluate
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Differentiate w.r.t. x
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2x^{2}+x-6x^{2}-x+3
Multiply 3 and 2 to get 6.
-4x^{2}+x-x+3
Combine 2x^{2} and -6x^{2} to get -4x^{2}.
-4x^{2}+3
Combine x and -x to get 0.
\frac{\mathrm{d}}{\mathrm{d}x}(2x^{2}+x-6x^{2}-x+3)
Multiply 3 and 2 to get 6.
\frac{\mathrm{d}}{\mathrm{d}x}(-4x^{2}+x-x+3)
Combine 2x^{2} and -6x^{2} to get -4x^{2}.
\frac{\mathrm{d}}{\mathrm{d}x}(-4x^{2}+3)
Combine x and -x to get 0.
2\left(-4\right)x^{2-1}
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}.
-8x^{2-1}
Multiply 2 times -4.
-8x^{1}
Subtract 1 from 2.
-8x
For any term t, t^{1}=t.