Differentiate w.r.t. x
7
Evaluate
7x
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\frac{\mathrm{d}}{\mathrm{d}x}(7x)
Combine 9x and -2x to get 7x.
7x^{1-1}
The derivative of ax^{n} is nax^{n-1}.
7x^{0}
Subtract 1 from 1.
7\times 1
For any term t except 0, t^{0}=1.
7
For any term t, t\times 1=t and 1t=t.
7x
Combine 9x and -2x to get 7x.
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