engineering mathematics MCQ #756

If y = x³ + 2x² - x, then dy/dx = ?

engineering mathematics MCQ #756

  1. Question 1

    Q1. If y = x³ + 2x² - x, then dy/dx = ?

    • A) 3x² + 4x - 1
    • B) 3x² + 2x - 1
    • C) x² + 4x - 1
    • D) 3x² - 4x - 1

    Answer: 3x² + 4x - 1

    Explanation: Using power rule for differentiation, dy/dx = d(x³ + 2x² - x)/dx = 3x² + 4x - 1.