Equation can't solve with 2.15 but 2.10 can

[BINUBALL]

(03-20-2021 10:05 AM)franz.b Wrote:  with both calculators the result is "Unable to factor".
For example, are you sure that all other system flags are set the same way?

I moved EMU48's flag setting to real 50G and that eq gives four roots. After flag compare, I figured it out. Answer is -109 SF. If -109 is set, numeric factorization is allowed.
I think after SF 109, most "Unable to factor" problem can solved.