Worksheet for Solving Roots of Quadratic Equations
−b ± √   b2 − 4ac 
          2a          

  a   x2    b   x   c   = 0 

Data Input and Calculator Directions:

Enter the terms in the preprepared quadratic equation above (note: the defaults can be overwritten). Be sure to select the radio buttons to enable the desired add and / or subtract operations. Then select each of the calculate buttons below sequentially, starting at step 1 and ending at step 6.

Solution Steps

1. equation terms

a term:

b term:

c term:

      

2. b square

b term squared:

            

3. minus 4ac

Multiplication Operation:

Subtraction Operation:

            

4. square root difference

Square Root of Difference:

            

5. root 1

Root:

Plus:

i

   

6. root 2

Root:

Minus:

i

   


Author: John Marshall