Evaluate
b^{4}
Differentiate w.r.t. b
4b^{3}
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-2b^{4}+3b^{4}
Combine 14b^{4} and -16b^{4} to get -2b^{4}.
b^{4}
Combine -2b^{4} and 3b^{4} to get b^{4}.
\frac{\mathrm{d}}{\mathrm{d}b}(-2b^{4}+3b^{4})
Combine 14b^{4} and -16b^{4} to get -2b^{4}.
\frac{\mathrm{d}}{\mathrm{d}b}(b^{4})
Combine -2b^{4} and 3b^{4} to get b^{4}.
4b^{4-1}
The derivative of ax^{n} is nax^{n-1}.
4b^{3}
Subtract 1 from 4.
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