SOLUTION: I don't think these are from the book, I guess this is why I am having such a huge problem with them I have four questions that I am struggling with help me simply this rat

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Question 146995: I don't think these are from the book, I guess this is why I am having such a huge problem with them
I have four questions that I am struggling with

help me simply this rational expression
x^2 – 7x + 12
x^2 – 16

I don't know if this makes a difference but x^2-7x+12 are all underlined

Found 2 solutions by jim_thompson5910, oscargut:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Start with the given expression.


Factor to get .


Factor to get .


Highlight the common terms.


Cancel out the common terms.


Simplify.


So simplifies to .


In other words, where or

Answer by oscargut(2103)   (Show Source): You can put this solution on YOUR website!
(x^2 – 7x + 12)/(x^2 – 16)= (x-4)(x-3)/(x-4)(x+4)=(x-3)/(X+4)

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