Quadratic Equation

1. WELCOME
SK SABBIR ALI
NORTH WESTERN UNIVERSITY
BANGLADESH

2. Quadratic equation is in the form
Where
a, b, & c = real-number constants
a & b = numerical coefficient or
simply coefficients
a = coefficient of x2
b = coefficient of x
c = constant term or simply constant
a cannot be equal to zero while either b or
c can be zero

3. Quadratic equation

4. Quadratic equation

5. Steps for Solving Quadratic Equations by Factoring
1. Write the equation in standard form:
2. Factor completely.
3. Apply the Zero Product Rule , by setting each factor containing a variable to zero. If ab = 0,
then a = 0 or b = 0.
4. Solve the linear equations in step 3.
5. Check.
Note: Most quadratic equations have 2 solutions . The 2 solutions correspond to the x-
intercepts of the graph of a quadratic function.

6. Examples of Quadratic Equation

7. Examples of Quadratic Equation

8. Examples of Quadratic Equation