How do you add #(x + 4)/(2x +6) +3/(x^2-9)#?
2 Answers
It's all about using factoring to "whittle down" these guys.
First, 2x + 6 is 2 times x + 3.
Also,
The common denominator is 2(x+3)(x-3)
Now simplify.
This might be the final answer, but we need to check for any common factors in the numerator and denominator.
Aha! The
Final Answer
As with simple fractions, the first step is to create a common denominator.
Since
the obvious choice for a common denominator is
and our addition becomes