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Quadratic Equations and Prime Numbers
Survey of Mathematical Methods
Shadd Campbell
MAT 126
March 11, 2013
Quadratic Equations and Prime Numbers
The first project prescribed this week pertains to quadratic equations. Quadratic equations date back to 1800 BC and 1600 BC. The Babylonians left the earliest evidence of quadratic equations, and provided methods for solving them. This week we look at the Indian quadratic equations and the method for solving them.

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Quadratic Equations and Prime Numbers
Survey of Mathematical Methods
Shadd Campbell
MAT 126
March 11, 2013
Quadratic Equations and Prime Numbers
The first project prescribed this week pertains to quadratic equations. Quadratic equations date back to 1800 BC and 1600 BC. The Babylonians left the earliest evidence of quadratic equations, and provided methods for solving them. This week we look at the Indian quadratic equations and the method for solving them. Quadratic equation is defined as “one or more of the terms is squared but raised to no higher power, having the general form , where a, b, and c are constants” (American Heritage Dictionary, 2003). The second project prescribed this week deals with prime numbers. A prime number is defined as “a positive integer not divisible without a remainder by any positive integer other than itself and one” (American Heritage Dictionary, 2003).
Project 1: Bluman, 2005, page 331 (Equations A and C)
Equation A

b.
c.
d. v ( = v56 v( = v56
e.
f.
The solution would be and
Equation C
0
a.
b.
c.
d. v ( = v400
v( = v400
e.
= 4
f. x)
= -16
The solution would be and
Project 2: Bluman, 2005, page 331
First, let’s choose x = 0
(This is prime)
If we then substitute x = 2
(This is prime)
Then substitute x = 5
(This is prime)
Then substitute x= 7
(This is prime)
Finally, let’s choose x = 41
(This is a composite)
When we substitute 41 for x we get a composite number.
After completing this exercise I considered when an individual would us a quadratic equation. I found it very interesting that quadratic equations are used quite frequently by the military to determine missile trajectories. They use computers almost exclusively, but the computer bases the trajectories on the quadratic formula. The second use I found was for amplifiers in car stereos. Electrical engineers use the formula to determine the response needed to provide the best sound quality.
When…

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