21 12x + x4 Evaluate 19 dx - 6x2 + 7 x3 – 19x + C, Where C is the parameter 6x² + 7 x³ 19x + C, Where C is the | parameter 6x? – 7 x-3 19x + C, Where C is the - parameter 6x2 + 7 x 7 x-3 19 + C, Where C is the parameter

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