There is poor development of continued factoring of problems such as x 4 - y 4 . This major topic is characterized by lots of clear examples and lots of problems, with medium problems well represented in the mix and some hard problems. The most outstanding feature, however, is the number and quality of application problems which appear in three different sections in large supply. Graphing does not get to difficult problems and omits the terms consistent and inconsistent. Linear combinations are treated in two sections for good coverage.
Substitution has good coverage as well.
The section on linear inequalities is to be commended for including a good number of more difficult cases. The section on linear programming is very brief and has an insufficient number of problems. The treatment of 3 equations in 3 unknowns is not given separately. These problems appear in each of 3 distinct solution sections, but are not explained. There is no treatment of the matrix solution.