Math Problem Statement

derivative of x^2(x-2)^4

Solution

To find the derivative of f(x)=x2(x2)4f(x) = x^2 (x - 2)^4, we'll use the product rule, which states that for functions u(x)u(x) and v(x)v(x), the derivative of their product is:

(fg)=fg+fg(fg)' = f'g + fg'

In this case:

  • Let u(x)=x2u(x) = x^2
  • Let v(x)=(x2)4v(x) = (x - 2)^4

Now let's find the derivatives of u(x)u(x) and v(x)v(x) separately, and then apply the product rule.

Step 1: Differentiate u(x)=x2u(x) = x^2

u(x)=2xu'(x) = 2x

Step 2: Differentiate v(x)=(x2)4v(x) = (x - 2)^4

Using the chain rule, we get: v(x)=4(x2)31=4(x2)3v'(x) = 4(x - 2)^3 \cdot 1 = 4(x - 2)^3

Step 3: Apply the Product Rule

Using (uv)=uv+uv(uv)' = u'v + uv', we have: f(x)=u(x)v(x)+u(x)v(x)f'(x) = u'(x) \cdot v(x) + u(x) \cdot v'(x)

Substitute the values we found: f(x)=(2x)(x2)4+(x2)(4(x2)3)f'(x) = (2x)(x - 2)^4 + (x^2)(4(x - 2)^3)

Step 4: Simplify

We can factor out 2x(x2)32x(x - 2)^3 from each term: f(x)=2x(x2)3((x2)+2x)f'(x) = 2x(x - 2)^3 \left( (x - 2) + 2x \right)

Simplify inside the parentheses: f(x)=2x(x2)3(3x2)f'(x) = 2x(x - 2)^3 (3x - 2)

Final Answer

f(x)=2x(x2)3(3x2)f'(x) = 2x(x - 2)^3 (3x - 2)

Would you like further details or have any questions on this solution?


Here are some follow-up questions to deepen understanding:

  1. What is the second derivative of f(x)=x2(x2)4f(x) = x^2(x-2)^4?
  2. How would you find the critical points of f(x)=x2(x2)4f(x) = x^2(x-2)^4?
  3. What are the inflection points of f(x)=x2(x2)4f(x) = x^2(x-2)^4?
  4. How does the function f(x)=x2(x2)4f(x) = x^2(x-2)^4 behave as xx \to \infty and xx \to -\infty?
  5. What is the behavior of f(x)=x2(x2)4f(x) = x^2(x-2)^4 near x=2x = 2?

Tip: When using the product rule, always check if you can factor out terms to simplify the expression after differentiating.

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Math Problem Analysis

Mathematical Concepts

Calculus
Product Rule
Chain Rule
Differentiation

Formulas

Product Rule: (f(x)g(x))' = f'(x)g(x) + f(x)g'(x)
Chain Rule: d/dx [f(g(x))] = f'(g(x)) * g'(x)

Theorems

Product Rule
Chain Rule

Suitable Grade Level

Grade 12 or College Calculus