Derivative of 3x^2 - 4x from first principle- English

What is the derivative of 3x^2?

finding the derivative by using the definition, f(x)=3x^2-4x+1, calculus 1 tutorial

Using definition of derivative find f’(a) for f(x) = 3x^2 -4x +1.

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y = sqrt(3x^2 - 4x + 6) , find the derivative

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find the derivative of the function f(x) = (x^3 - 3x^2 + 4)/x^2

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Find Derivative of 3x^2 + 4x + 4

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Find the derivative using the first principle f(x)=3x^2−x+4 - Derivatives - Differentiation #48

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Find the derivative dy/dx using chain rule for y = sin^2 (3x -2).