This algebra video tutorial explains how to solve equations in quadratic form by factoring by substitution. It contains plenty of examples and practice problems for you to work on.

How To Solve Simple Quadratic Equations:    • How To Solve Simple Quadratic Equations  

Solving Quadratic Equations By Factoring:
   • How To Solve Quadratic Equations By F...  

How To Factor Difficult Quadratic Equations:
   • How To Factor Difficult Quadratic Equ...  

Solving QE By Completing The Square:
   • How To Solve Quadratic Equations By C...  

Solving Equations In Quadratic Form:
   • Solving Equations In Quadratic Form U...  

Sum and Products - Quadratic Equations:
   • How To Find The Sum and Product of th...  

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How To Calculate The Discriminant:
   • How To Determine The Discriminant of ...  

Standard Form to Vertex Form:
   • Standard Form to Vertex Form - Quadra...  

Graphing Quadratic Functions:
   • Graphing Quadratic Functions Using Tr...  

How To Find The Axis of Symmetry:
   • How to Find The Axis of Symmetry  

Graphing Quadratic Functions - Vertex Form:
   • Graphing Quadratic Functions In Verte...  

Graphing QF in Standard Form:
   • Graphing Quadratic Functions In Stand...  

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Writing Quadratic Equations:
   • Writing Quadratic Equations In Standa...  

Maximum and Minimum Word Problems:
   • Maximum and Minimum Value Word Proble...  

Systems of Quadratic Equations:
   • Systems of Quadratic Equations  

Systems of Nonlinear Equations:
   • How To Solve Systems of Nonlinear Equ...  

Quadratic Inequalities:
   • Quadratic Inequalities  

Quadratic Equations - Test Review:
   • Quadratic Equations Multiple Choice P...  

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