What is the derivative of f(x) = x^4 - 4x^3 + 6x^2 - 24x + 5?

Practice Questions

Q1
What is the derivative of f(x) = x^4 - 4x^3 + 6x^2 - 24x + 5?
  1. 4x^3 - 12x^2 + 12x - 24
  2. 3x^2 - 12x + 6
  3. 4x^3 - 12x^2 + 6
  4. 12x^2 - 12

Questions & Step-by-Step Solutions

What is the derivative of f(x) = x^4 - 4x^3 + 6x^2 - 24x + 5?
  • Step 1: Identify the function f(x) = x^4 - 4x^3 + 6x^2 - 24x + 5.
  • Step 2: Recall the power rule for derivatives: If f(x) = x^n, then f'(x) = n*x^(n-1).
  • Step 3: Apply the power rule to each term in the function.
  • Step 4: For the first term x^4, the derivative is 4*x^(4-1) = 4x^3.
  • Step 5: For the second term -4x^3, the derivative is -4*3*x^(3-1) = -12x^2.
  • Step 6: For the third term 6x^2, the derivative is 6*2*x^(2-1) = 12x.
  • Step 7: For the fourth term -24x, the derivative is -24*1*x^(1-1) = -24.
  • Step 8: The constant term 5 has a derivative of 0, since the derivative of any constant is 0.
  • Step 9: Combine all the derivatives from steps 4 to 8: f'(x) = 4x^3 - 12x^2 + 12x - 24.
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