L = 28490
D = 2183
I get about B = -1209 units. B should equal 622.
Arbitrarily removing the negative and dividing by two, it's close enough that it might be the correct value of B (622), but of course that may also be coincidence.
Anyone see what I am doing wrong? It seems that when I work the problem backwards using the solution, I get the right answers. So it must be my simplification somewhere...
Thanks so much for any pointers! I appreciate it.
Edit: Got 623 as answer. My D * B expansion I forgot to multiply in both directions while expanding the polynomial. Should have been 900 (D*B), not 450 (D*B)
Thanks anyways to anyone who read!