Limiting Limits

Calculus Level 2

\[\lim _{x\rightarrow 10} \frac{x^{3}-10x^{2}-25x+250}{x^{4}-149x^{2}+4900} = \frac{a}{b}\]

Where \(a\) and \(b\) are coprime integers. Submit your answer as \(a+b\)