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Homework Statement
Basically I have to fill out this ax^2+bx+c using the given numbers
-8,-4,-3,1,2,5,6,7,9
The solution must be the one provided
So it works like this (example is just with regular addition)
1 2 3=5
8
9
=
18
Here is the problem:
http://www.shareapic.net/content.php?id=24056338&owner=sheldon3
Edit: pick the coefficients a, b, and c from the nine numbers at the top of the page (-8, -4, -3, 1, 2, 5, 6, 7, and 9) so that the equation ax2 + bx + c = 0 has the number to the right or below as a solution.
Homework Equations
ax^2+bx+c
x=-b+- √(b)^2 - 4(a)(c) / 2 QUADRATIC FORMULA
The Attempt at a Solution
I found the top row to be 1,-3,-4
And the first column to be 1,2,9
I accomplished this using trial and error. Is there a more efficient way to solve this?
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