Unit 5. Equations and linear systems

1. Equations

   • Linear equations 
   • Equations with parentheses 
   • Equations with denominators
   • Second degree equations. 
   • Complete equation: ax²+ bx +c = 0
   • Incomplete equations 
   ax² + c = 0   Steps b=0 
   ax² + bx = 0 Steps c=0
   • Discriminant: number of solutions Definition exercises2
   EjerciciosRepasoPDF
   • Bicuadratic equations ax⁴+bx²+c=0 Steps 
   • Equations of the type (...)·(...)·(...)=0 Steps
   • Word problems involving equations

2. System of linear equations

   • Linear equation with two unknown
   • Graph of a linear equation
   • System of linear equations
   • Definition
   • Standard form
   • Graphic Method. Solutions
   • A solution
   • Infinitive solutions
   • No solution

   • Solving systems
   • Equivalent system
   • Substitution Method  Steps
   • Equating Method       Steps
   • Elimination Method  Steps
   • Word problems involving linear equations