What is x when c is at maximum?

  • Context: MHB 
  • Thread starter Thread starter Wilmer
  • Start date Start date
  • Tags Tags
    Puzzle
Click For Summary
SUMMARY

The equation a = x^2 + 2cx + 1 and b = 2x + 3c + 3 leads to the expression a / b = 5 with a remainder of 11. The solution for c is definitively c = -10 when x = 25. There are a total of 6 integer solutions for the variables c and x, with 3 of those solutions being positive integers. The current inquiry focuses on determining the value of x when c is at its maximum.

PREREQUISITES
  • Understanding of quadratic equations and their properties
  • Familiarity with polynomial long division
  • Knowledge of integer solutions in algebra
  • Basic problem-solving skills in algebraic contexts
NEXT STEPS
  • Explore the concept of maximizing variables in quadratic equations
  • Study integer solutions in polynomial equations
  • Learn about the implications of remainders in polynomial division
  • Investigate the relationship between coefficients and roots in quadratic functions
USEFUL FOR

Mathematicians, algebra students, puzzle enthusiasts, and anyone interested in solving quadratic equations and maximizing variables within algebraic contexts.

Wilmer
Messages
303
Reaction score
0
a = x^2 + 2cx + 1
b = 2x + 3c + 3

a / b = 5 plus a remainder of 11.

c=?

Want to include above in a "puzzle" site.
Want see if it makes sense..

Can you solve it?
Than you.
 
Mathematics news on Phys.org
Wilmer said:
...Can you solve it?...

Yes:

One easy solution is:

$$c=-10$$

I will be glad to show what I did if required.
 
MarkFL said:
Yes:
One easy solution is:
$$c=-10$$
I will be glad to show what I did if required.
Yippee! Yes, c=-10 (x=25) is a solution.

There are 6 solutions (I'm 99% sure) where c and x are integers (positive or negative).
3 of those have x and c > 0.

Hokay: question is now: what is x when c is at maximum?

Thanks Mark. Nice to hear from you !
 

Similar threads

  • · Replies 12 ·
Replies
12
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 9 ·
Replies
9
Views
4K
Replies
2
Views
2K