Math Problem Statement
lim x→2 x 3−8 3x2−6x
Solution
The given limit expression is:
To solve this, we can follow these steps:
Step 1: Check for direct substitution
First, try substituting into the expression:
Since this results in an indeterminate form , we need to simplify the expression further.
Step 2: Factor the numerator and denominator
- The numerator is a difference of cubes. This can be factored as:
- The denominator can be factored as:
Step 3: Simplify the expression
Now substitute the factored forms into the original limit:
We can cancel the terms from the numerator and denominator, assuming :
Step 4: Apply direct substitution again
Now, substitute into the simplified expression:
Final Answer:
Would you like more details or further clarification?
Here are some additional questions related to this concept:
- How do you solve limits involving indeterminate forms other than ?
- What is the factorization process for cubes and squares in polynomials?
- Can you explain why cancelling terms like is valid?
- How do you apply L'Hopital's Rule to solve limits?
- What are common indeterminate forms in limits, and how can we simplify them?
Tip: Always check for factorization possibilities when you encounter indeterminate forms like .
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Calculus
Limits
Factorization
Indeterminate Forms
Formulas
Factorization of a difference of cubes: a^3 - b^3 = (a - b)(a^2 + ab + b^2)
Factoring out common terms in polynomials
Theorems
Limit Laws
Difference of Cubes Theorem
Suitable Grade Level
Grades 11-12
Related Recommendation
Limit Calculation: Evaluate lim (x -> 2) (x^3 - 8)/(x - 2)
Limit of (x^3 - 8)/(x - 2) as x Approaches 2
Solve Limit Problem Involving Indeterminate Form Using Factoring: lim(x -> 2) (x^3 - 2x^2) / (x^2 - 4)
Evaluate the Limit of (x^3 - 2x^2) / (x^2 - 4) as x Approaches 2
Limit of (x^3 - 8) / (x^2 - 4) as x Approaches 2