Differentiate w.r.t. a
30a^{2}
Evaluate
10a^{3}
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\frac{\mathrm{d}}{\mathrm{d}a}(10a^{3})
Combine 4a^{3} and 6a^{3} to get 10a^{3}.
3\times 10a^{3-1}
The derivative of ax^{n} is nax^{n-1}.
30a^{3-1}
Multiply 3 times 10.
30a^{2}
Subtract 1 from 3.
10a^{3}
Combine 4a^{3} and 6a^{3} to get 10a^{3}.
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