Math Problem Statement

Calculate f''(2) for f(x) = x^3 + e^x(x^2 + x + 1)

Solution

The problem in the image asks us to calculate f(2)f''(2) for the function:

f(x)=x3+ex(x2+x+1)f(x) = x^3 + e^x(x^2 + x + 1)

Steps to solve this:

  1. Differentiate f(x)f(x) to find f(x)f'(x):

    • Apply the product rule to the second term ex(x2+x+1)e^x(x^2 + x + 1), as it is a product of two functions.
    • The derivative of x3x^3 is straightforward.
  2. Differentiate again to find f(x)f''(x).

  3. Substitute x=2x = 2 into f(x)f''(x) to calculate f(2)f''(2).

Let's start with the differentiation. I'll compute this now.The second derivative f(x)f''(x) is:

f(x)=6x+2(2x+1)ex+(x2+x+1)ex+2exf''(x) = 6x + 2(2x + 1)e^x + (x^2 + x + 1)e^x + 2e^x

Now, substituting x=2x = 2, we get:

f(2)=12+19e2f''(2) = 12 + 19e^2

This is the exact expression for f(2)f''(2).

If you need a more detailed explanation or have any further questions, feel free to ask! Here are some related questions:

  1. How does the product rule work in calculus?
  2. Why is the second derivative important in analyzing functions?
  3. What are some common applications of second derivatives in real-world problems?
  4. How do exponential functions affect the behavior of derivatives?
  5. Can we approximate e2e^2 to get a numerical value for f(2)f''(2)?

Tip: When working with exponential functions, it's often helpful to keep results in symbolic form to avoid approximation errors until the final step.

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Math Problem Analysis

Mathematical Concepts

Calculus
Differentiation
Product Rule
Exponential Functions

Formulas

f'(x) = 3x^2 + e^x(2x + 1) + e^x(x^2 + x + 1)
f''(x) = 6x + 2(2x + 1)e^x + (x^2 + x + 1)e^x + 2e^x

Theorems

Product Rule
Chain Rule
Exponential Derivative Rule

Suitable Grade Level

Undergraduate Calculus