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Please help! Can anyone help me out with this question?

Please help! Can anyone help me out with this question?-example-1
User Frederic Le Feurmou
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1 Answer

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20 votes

Answer:


\displaystyle h'(s) = 64s + 20

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Distributive Property

Algebra I

  • Terms/Coefficients

Calculus

Derivatives

Derivative Notation

Derivative of a constant is 0

Basic Power Rule:

  • f(x) = cxⁿ
  • f’(x) = c·nxⁿ⁻¹

Derivative Rule [Product Rule]:
\displaystyle (d)/(dx) [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)

Explanation:

Step 1: Define


\displaystyle h(s) = (-8s - 9)(-4s + 2)

Step 2: Differentiate

  1. [Derivative] Product Rule:
    \displaystyle h'(s) = (d)/(ds)[(-8s - 9)](-4s + 2) + (-8s - 9)(d)/(ds)[(-4s + 2)]
  2. [Derivative] Basic Power Rule:
    \displaystyle h'(s) = (1 \cdot -8s^(1 - 1) - 0)(-4s + 2) + (-8s - 9)(1 \cdot -4s^(1 - 1) - 0)
  3. [Derivative] Simplify:
    \displaystyle h'(s) = (-8)(-4s + 2) + (-8s - 9)(-4)
  4. [Derivative] Distribute [Distributive Property]:
    \displaystyle h'(s) = 32s - 16 + 32s + 36
  5. [Derivative] Combine like terms:
    \displaystyle h'(s) = 64s + 20

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Derivatives

Book: College Calculus 10e

User Donlelek
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