.A student says that a fifth-degree polynomial equation with a rational coefficients has roots -5, -3, 1, 2. Describe possible errors the student may have made.

Aconstruction worker needs to put a rectangular window in the side of a building he knows from measuring that the top and bottom of the window have a width of 8bfeet and the sides have a length of 15 feet he also measured one diagonal to be 17 feet what is the length of the other diagonal