Math question: Find the derivative of f(x) = 3x^4 - 2x^2 + 5x - 1 using basic rules of derivatives.
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What is the value of f(x) = 2x + 5 when x is equal to 7?
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What is the congruence rule that states if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent?