UNIT 4. Algebraic expressions. Equations

In this unit you are going to learn about:

• Algebraic expression
• Equations

You can learn about algebraic expression if you click here

http://www.mathgoodies.com/LESSONS/VOL7/EQUATIONS.HTML (Do the exercises)

And now in this sections illustrates the process of solving equations of various forms

http://www.sosmath.com/algebra/solve/solve0/solve0.html

Need some algebra help? Or just wanting to review some key concepts in algebra? Here’s some lessons to get you started on this important branch of math. With these lessons, algebra will no longer be a mystery reserved for the select few. Wacth these videos

http://www.onlinemathlearning.com/algebra-help.html

Enjoy with this game Algebra Four                                                        

http://www.shodor.org/interactivate/activities/AlgebraFour/

Have a look at this page and  solve quadratic equations

http://www.enchantedlearning.com/math/algebra/quadratic/

Learn the song of the Quadratic Formula here

http://www.youtube.com/watch?v=TBBBHel5Kdk&feature=related

or here

Si necesitas repasar aui tienes unos cuantos ejercicios

https://2esobilingualmathspjm.files.wordpress.com/2009/09/ polinomios2eso.pdf