How do you simplify #\frac { 9x + 19} { x ^ { 2} + 2x - 3}#?
1 Answer
It really doesn't simplify much. The bottom line becomes
Explanation:
You have a quadratic on the bottom, identifiable by the layout
take your last number a.k.a the one without an unknown '
Then find the factors of this new value which add up to your
Factors of
Rewrite the original quadratic:
as
remember that these two lines above are equal, but this second version makes it possible to simplify.
Take out what is common in the first two terms firstly, and then the second two terms.
we now have a common sum in both brackets, so we can actually rewrite this as:
Lastly, don't forget that this is part of your original fraction.
The top line cannot simplify because
Viola!