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Differentiate w.r.t. x
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8x-\frac{1\times 1}{4\times 4}x+0,75x
Multiply \frac{1}{4} times \frac{1}{4} by multiplying numerator times numerator and denominator times denominator.
8x-\frac{1}{16}x+0,75x
Do the multiplications in the fraction \frac{1\times 1}{4\times 4}.
\frac{127}{16}x+0,75x
Combine 8x and -\frac{1}{16}x to get \frac{127}{16}x.
\frac{139}{16}x
Combine \frac{127}{16}x and 0,75x to get \frac{139}{16}x.
\frac{\mathrm{d}}{\mathrm{d}x}(8x-\frac{1\times 1}{4\times 4}x+0,75x)
Multiply \frac{1}{4} times \frac{1}{4} by multiplying numerator times numerator and denominator times denominator.
\frac{\mathrm{d}}{\mathrm{d}x}(8x-\frac{1}{16}x+0,75x)
Do the multiplications in the fraction \frac{1\times 1}{4\times 4}.
\frac{\mathrm{d}}{\mathrm{d}x}(\frac{127}{16}x+0,75x)
Combine 8x and -\frac{1}{16}x to get \frac{127}{16}x.
\frac{\mathrm{d}}{\mathrm{d}x}(\frac{139}{16}x)
Combine \frac{127}{16}x and 0,75x to get \frac{139}{16}x.
\frac{139}{16}x^{1-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{139}{16}x^{0}
Subtract 1 from 1.
\frac{139}{16}\times 1
For any term t except 0, t^{0}=1.
\frac{139}{16}
For any term t, t\times 1=t and 1t=t.