SOLUTION: Developing and Analyzing the Quadratic Formula This formula, which is called the quadratic formula, can be used to find the roots for any quadratic equation of the form ax2 + b

Question 853149: Developing and Analyzing the Quadratic Formula
This formula, which is called the quadratic formula, can be used to find the roots for any quadratic equation of the form ax2 + bx + c = 0. The formula can be used to solve a problem such as the following: The house addresses of two neighbouring houses differ by two. Their product is 85 263. What is each address?
Purpose:
Use the quadratic formula to find the roots of quadratic equations.
Procedure:
A. Create a quadratic equation that can be used to determine the house addresses in the problem.
B. Use the quadratic formula to find the roots of the quadratic equation
C. Verify the roots in Step B by using a method presented in focus F
D. Explain how the roots of the quadratic equation can be used to solve the problem.
I need help with all of the procedure. I completely stuck

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The house addresses of two neighbouring houses differ by two. Their product is 85 263. What is each address?
----------
1st: x-1
2nd: x+1
-------------------
Equation:
(x-1)(x+1) = 85,263
------
x^2 - 1 = 85,263
--------
x^2 = 85,264
---------
x = 292
-----
x-1 = 291
x+1 = 293
--------------------
Cheers,
stan H.
===================
RELATED QUESTIONS
Hi, I am really having a hard time analyzing this one, I hope someone could help me on... (answered by Earlsdon,venugopalramana)

What is the Quadratic Formula Answer to this: If the quadratic formula is used to... (answered by Alan3354)

The quadratic formula must be used to solve for x when your quadratic equation is... (answered by Theo)

Explain how the quadratic formula can be used to factor a quadratic polynomial into two... (answered by checkley77)

I need the formula to solve this problem. Section entitled, Analyzing Graphs of... (answered by richwmiller)

a) Is y = x^2 + 7x + 12 a quadratic equation*? Why or why not? b) Can it be solved by... (answered by josgarithmetic,macston)

what is the quadratic... (answered by longjonsilver)

what is the quadratic... (answered by stanbon)

write the quadratic... (answered by stanbon)