2/x +x 3 -2 = 2x -1 +x 3 -2. The first one isn't polynomial as it has a negative exponent and all exponents in a polynomial must be positive. To illustrate why the second one isn't a polynomial rewrite it a little.
The duration of an asthma attack can vary, depending on what caused it and how long the airways have been inflamed. Mild episodes may last only a few minutes; more severe ones can last from hours to days.Mild attacks can resolve spontaneously or may require medication, typically a quick-acting inhaler.More severe attacks can be shortened with appropriate treatment.ild episodes may last only a few minutes; more severe ones can last from hours to days. Mild attacks can resolve spontaneously or may require medication, typically a quick-acting inhaler. More severe attacks can be shortened with appropriate treatment.
Not everyone with asthma has the same symptoms and in the same way. Symptoms of asthma may also vary from one asthma episode to the next. They may be mild during one episode and severe during the next. Asthma does not cause a fever, chills, muscle aches or sore throat. The most common asthma symptoms include the following: Frequent coughing