Arithmetic Course/Polynominal Equation

Polynomial Equation

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An equation is an expression of one variable such that

 polynomials used to solve the theory of equations.

Solving Polynomial Equation

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Solving polynomial equations involves finding all the values of variable x that satisfy f(x) = 0.

First Order Equation

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A first order polynomial equation of one variable x has the general form

Ax + B = 0

Rewrite the equation above

 
 

Second Order Equation

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A second order polynomial equation of one variable x has the general form

  1.  
  2.  
  3.  

Solving Equation

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Method 1

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Where

 
 
 

Depending on the value of   the equation will have the following root

One Real Root

 

Two Real Roots

 
 

Two Complex Roots

 
 

Method 2

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Method 3

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