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Learn how to solve limits by direct substitution problems step by step online.
$\frac{d}{dx}\left(4x^2-28x\right)$
Learn how to solve limits by direct substitution problems step by step online. Factor the expression x^2+3x^2-28x. Simplifying. The derivative of a sum of two or more functions is the sum of the derivatives of each function. Apply the product rule for differentiation: (f\cdot g)'=f'\cdot g+f\cdot g'. The derivative of the constant function (4) is equal to zero.