1. The result of writing a rational expression as the sum of two or more simpler rational expressions is called the ________ ________ ________.
2. If the degree of the numerator of a rational expression is greater than or equal to the degree of the denominator, then the fraction is ________.
3. Each fraction on the right side of the equation (x - 1) / (x2 - 8x + 15) = -1 / (x - 3) + 2 / (x-5) is a ________ ________.
4. You obtain the ________ ________ by multiplying each side of the partial fraction decomposition form by the least common denominator.