Factoring the Expression (p² + p - 6)(p² - 6)
This expression involves two quadratic factors. Let's break down how to factor it completely.
Factoring the First Quadratic
The first factor, (p² + p - 6), is a quadratic trinomial that can be factored using the following steps:
- Find two numbers that multiply to -6 and add up to 1. These numbers are 3 and -2.
- Rewrite the middle term (p) using these numbers: (p² + 3p - 2p - 6)
- Factor by grouping: p(p + 3) - 2(p + 3)
- Factor out the common factor (p + 3): (p + 3)(p - 2)
Therefore, (p² + p - 6) factors to (p + 3)(p - 2).
Factoring the Second Quadratic
The second factor, (p² - 6), is a difference of squares. We can factor it using the following pattern:
a² - b² = (a + b)(a - b)
In this case, a = p and b = √6. So, the factored form is:
(p + √6)(p - √6)
Final Factored Form
Combining the factored forms of both quadratic factors, we get the completely factored expression:
(p + 3)(p - 2)(p + √6)(p - √6)
This is the final factored form of (p² + p - 6)(p² - 6).