Why can’t you just write a paragraph?
Just as they do in most ecosystems, decomposers feed off of dead or decaying matter, recycling it back into the ecosystem for plants to receive essential nutrients and to.. basically, de-clutter the world.
Deforestation because without trees and plants, they are nothing to convert CO2 into Oxygen.
The foil method is a method to factor an expression. For example: FFWw. The question is simply trying to confuse you. Turn FFWw into (FF)(Ww) then solve as shown: