This bilingual program offers 70690 of fully explained step by step solutions of algebra problems together with test authoring Herramientas. Problems of 11 levels of complexity vary from basic to advanced: linear, quadratic, biquadratic, reciprocal, cubic, high degree and complex fractional expressions - computational problems, proofs of identities, solutions of equations and inequalities and more. Fully explained step by step solutions and proofs. Each solution step is provided with the corresponding objective, definition, rule and proof of the underlying math formulae or theorem. Tutoring material is available in two languages and is always under hand. Special options help teachers create quizzes, tests, variant tests, exams and homeworks of varied complexity and develop problem solving lesson plans. A number of variant tests are ready for students to Repase and reinforce their skills. Free fully functional demo Versión of this program is available