Math Problem Statement

lim (h → 0) [(2 + h)^3 + 2(2 + h) - (2)^3 - 2(2)] / h

Solution

It seems like the text extraction didn't capture the mathematical expression correctly. However, from the image, the limit appears to be:

limh0(2+h)3+2(2+h)232(2)h\lim_{{h \to 0}} \frac{(2+h)^3 + 2(2+h) - 2^3 - 2(2)}{h}

Let's solve this limit step-by-step.

Step 1: Expand (2+h)3(2+h)^3

(2+h)3=8+12h+6h2+h3(2+h)^3 = 8 + 12h + 6h^2 + h^3

Step 2: Substitute the expanded form into the expression

The expression becomes:

(8+12h+6h2+h3)+2(2+h)84h\frac{(8 + 12h + 6h^2 + h^3) + 2(2+h) - 8 - 4}{h}

Step 3: Simplify the terms

Expand and combine the terms: (8+12h+6h2+h3)+4+2h84h=12h+6h2+h3+2hh\frac{(8 + 12h + 6h^2 + h^3) + 4 + 2h - 8 - 4}{h} = \frac{12h + 6h^2 + h^3 + 2h}{h}

Step 4: Factor the numerator

=h(12+6h+h2+2)h=12+6h+h2+2= \frac{h(12 + 6h + h^2 + 2)}{h} = 12 + 6h + h^2 + 2

Step 5: Take the limit as h0h \to 0

limh0(12+6h+h2+2)=12+2=14\lim_{{h \to 0}} (12 + 6h + h^2 + 2) = 12 + 2 = 14

Thus, the value of the limit is:

14\boxed{14}

Let me know if you need more details or further clarifications!

Here are 5 related questions to explore:

  1. How do you calculate limits involving indeterminate forms?
  2. What is the binomial expansion and how is it applied?
  3. How do you handle limits with higher-order polynomials?
  4. Can L'Hopital's Rule be used in this problem, and if so, how?
  5. What are common techniques to simplify limit problems involving polynomials?

Tip: Always check if you can simplify the numerator and denominator before applying limit techniques!

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Math Problem Analysis

Mathematical Concepts

Limits
Polynomial Expansion
Factorization
Algebra

Formulas

(a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3
Limit properties: lim (h → 0) [f(h)]
Factorization: factoring h from the polynomial expression

Theorems

Basic limit theorem: lim (h → 0) f(h) = f(0)
Polynomial expansion theorem

Suitable Grade Level

Grades 10-12