Week 7 – Pre calc 11

This week in Pre calc 11 we learned how to factor polynomials. One of the ways we can factor a polynomial is through using substitution. 

Lets suppose you have something like – 

 

Step 1: for substitution you can just substitute a variable of your choice to equal the terms in the brackets so that it can become factorable – 

Step 2: once it becomes factorable you can start factoring, in this case I’m going to be using the box method – 

Step 3: when we substituted we just made this polynomial factorable so that we can factor it and make it easier but it doesn’t mean that it’s the final answer. Now that we have the two multiples we can add them to the original (x-6) that we substituted a for – 

 

 

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