Math Problem Statement

W1. lim xS2 2x 2 -11x +14 x 2 -5x +6

Solution

It seems like you're trying to express a mathematical limit. I'll interpret your input as:

limx22x211x+14x25x+6\lim_{{x \to 2}} \frac{2x^2 - 11x + 14}{x^2 - 5x + 6}

Let's solve this limit.

Step 1: Factor the numerator and denominator

First, factor both the numerator and the denominator:

  • Numerator: 2x211x+142x^2 - 11x + 14
  • Denominator: x25x+6x^2 - 5x + 6

The denominator factors easily: x25x+6=(x2)(x3)x^2 - 5x + 6 = (x - 2)(x - 3)

Now let's factor the numerator: We need to factor 2x211x+142x^2 - 11x + 14. Using factoring techniques or the quadratic formula:

2x211x+14=(2x7)(x2)2x^2 - 11x + 14 = (2x - 7)(x - 2)

So the expression becomes:

limx2(2x7)(x2)(x2)(x3)\lim_{{x \to 2}} \frac{(2x - 7)(x - 2)}{(x - 2)(x - 3)}

Step 2: Cancel common factors

Both the numerator and denominator have a common factor of (x2)(x - 2), so we can cancel them out:

limx22x7x3\lim_{{x \to 2}} \frac{2x - 7}{x - 3}

Step 3: Substitute x=2x = 2

Now substitute x=2x = 2 into the simplified expression:

2(2)723=4723=31=3\frac{2(2) - 7}{2 - 3} = \frac{4 - 7}{2 - 3} = \frac{-3}{-1} = 3

Final Answer:

limx22x211x+14x25x+6=3\lim_{{x \to 2}} \frac{2x^2 - 11x + 14}{x^2 - 5x + 6} = 3

Would you like a more detailed explanation or have any further questions?

Related Questions:

  1. What are the methods to factor quadratic equations?
  2. How do you solve limits involving indeterminate forms?
  3. What are other techniques to evaluate limits if factoring doesn't work?
  4. How does the quadratic formula help in factoring difficult quadratics?
  5. How can L'Hôpital's Rule be applied to limits involving indeterminate forms?

Tip:

When evaluating limits, always check if factoring or simplifying the expression can help resolve indeterminate forms like 00\frac{0}{0}.

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Math Problem Analysis

Mathematical Concepts

Limits
Factoring
Rational Functions

Formulas

Quadratic equation formula: ax^2 + bx + c = 0
Limit formula

Theorems

Factoring Theorem
Limit Laws

Suitable Grade Level

Grades 11-12 (Pre-Calculus)