Math Problem Statement
Evaluate the limit: lim (2x^3 - 3x^2 + 2x + 5) as x approaches -1.
Solution
To evaluate the limit , we can directly substitute into the polynomial since polynomials are continuous everywhere.
Let's calculate:
Now, let's evaluate each term:
So, substituting these into the expression:
Thus, the limit is:
Would you like more details or have any other questions?
Here are some follow-up questions you might consider:
- How can you determine if a function is continuous at a point?
- What is the significance of continuity in evaluating limits?
- What are other methods to evaluate limits besides direct substitution?
- How would you evaluate a limit if the direct substitution led to an indeterminate form like ?
- Can you explain why polynomials are continuous everywhere?
Tip: When evaluating limits of polynomials, direct substitution is often the easiest method because polynomials are continuous at all points.
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Math Problem Analysis
Mathematical Concepts
Limits
Polynomial Functions
Formulas
Direct Substitution Method for Limits
Limit properties for continuous functions
Theorems
Continuity of Polynomials
Suitable Grade Level
Grades 11-12 or Introductory College Calculus