This week in PreCalc 11 we learned about adding and subtracting rational expressions that have binomial and trinomial denominators. So the first step in any adding or subtracting of expressions, you need to simplify the whole equation by finding common factors in the numerator or denominators.


Next we need to find a common denominator so we can add just like a normal fraction

Then you just have to simplify it further by taking the brackets out and adding/substracting respectively