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Differentiate w.r.t. x
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\left(7x^{3}\right)^{1}\times \frac{1}{56x^{2}}
Use the rules of exponents to simplify the expression.
7^{1}\left(x^{3}\right)^{1}\times \frac{1}{56}\times \frac{1}{x^{2}}
To raise the product of two or more numbers to a power, raise each number to the power and take their product.
7^{1}\times \frac{1}{56}\left(x^{3}\right)^{1}\times \frac{1}{x^{2}}
Use the Commutative Property of Multiplication.
7^{1}\times \frac{1}{56}x^{3}x^{2\left(-1\right)}
To raise a power to another power, multiply the exponents.
7^{1}\times \frac{1}{56}x^{3}x^{-2}
Multiply 2 times -1.
7^{1}\times \frac{1}{56}x^{3-2}
To multiply powers of the same base, add their exponents.
7^{1}\times \frac{1}{56}x^{1}
Add the exponents 3 and -2.
7\times \frac{1}{56}x^{1}
Raise 7 to the power 1.
\frac{1}{8}x^{1}
Multiply 7 times \frac{1}{56}.
\frac{1}{8}x
For any term t, t^{1}=t.
\frac{7^{1}x^{3}}{56^{1}x^{2}}
Use the rules of exponents to simplify the expression.
\frac{7^{1}x^{3-2}}{56^{1}}
To divide powers of the same base, subtract the denominator's exponent from the numerator's exponent.
\frac{7^{1}x^{1}}{56^{1}}
Subtract 2 from 3.
\frac{1}{8}x^{1}
Reduce the fraction \frac{7}{56} to lowest terms by extracting and canceling out 7.
\frac{1}{8}x
For any term t, t^{1}=t.
\frac{\mathrm{d}}{\mathrm{d}x}(\frac{7}{56}x^{3-2})
To divide powers of the same base, subtract the denominator's exponent from the numerator's exponent.
\frac{\mathrm{d}}{\mathrm{d}x}(\frac{1}{8}x^{1})
Do the arithmetic.
\frac{1}{8}x^{1-1}
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}.
\frac{1}{8}x^{0}
Do the arithmetic.
\frac{1}{8}\times 1
For any term t except 0, t^{0}=1.
\frac{1}{8}
For any term t, t\times 1=t and 1t=t.