Suppose we have the follwing two identities:
(Ax-26)(Bx^2+Cx+D)=8x^3-2197
and (Ex-52)(Fx^2+Gx+H)=8x^3-2197;

Compute the quantity ((13B/2 + 2D/13 + AB)+(13F/2+2H/13+EF)).

(In reply to No Subject by Jun)

Taking x=1 in the first identity and using your numbers

(4-26)(2+13+84.5)=(-22)(99.5)=-2189 ~= 8^3-2197=-1685.

I think there is an error in your calculations.

Posted by Richard on 2005-02-11 17:34:55