1. **State the problem:** Simplify the expression \( \frac{12p^2 - 93}{8p^2 - 29p + 40} \).
2. **Factor numerator and denominator:**
- Numerator: \(12p^2 - 93 = 3(4p^2 - 31)\) (cannot factor further with integers).
- Denominator: Factor \(8p^2 - 29p + 40\).
3. **Factor denominator using AC method:**
- Multiply \(8 \times 40 = 320\).
- Find two numbers that multiply to 320 and add to -29: -20 and -9.
- Rewrite: \(8p^2 - 20p - 9p + 40\).
- Group: \((8p^2 - 20p) + (-9p + 40)\).
- Factor each group: \(4p(2p - 5) - 8(2p - 5)\).
- Factor out common binomial: \((4p - 8)(2p - 5)\).
- Simplify \(4p - 8 = 4(p - 2)\).
- So denominator factors as \(4(p - 2)(2p - 5)\).
4. **Rewrite the fraction:**
$$\frac{3(4p^2 - 31)}{4(p - 2)(2p - 5)}$$
5. **Check for common factors:**
- Numerator \(4p^2 - 31\) does not factor further and shares no common factors with denominator.
6. **Final simplified form:**
$$\frac{3(4p^2 - 31)}{4(p - 2)(2p - 5)}$$
This is the simplest form since numerator and denominator share no common factors.
Simplify Rational Expression Cab153
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