Final Answer
Step-by-step Solution
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Apply the product rule for differentiation: $(f\cdot g)'=f'\cdot g+f\cdot g'$, where $f=5x+4$ and $g=5x-4$
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$\frac{d}{dx}\left(5x+4\right)\left(5x-4\right)+\left(5x+4\right)\frac{d}{dx}\left(5x-4\right)$
Learn how to solve differential calculus problems step by step online. Find the derivative of (5x+4)(5x-4). Apply the product rule for differentiation: (f\cdot g)'=f'\cdot g+f\cdot g', where f=5x+4 and g=5x-4. The derivative of a sum of two or more functions is the sum of the derivatives of each function. The derivative of a sum of two or more functions is the sum of the derivatives of each function. The derivative of the constant function (4) is equal to zero.