Abstract: Let $$P := P(t) $$ be a non square polynomial and $$f := f(z)$$ be a bijective application over $$Z$$. Using the method of continuous fractions, we consider, in this paper, the number of integer solutions of transcendental equation <br><br>
$$\sqrt {2f(z) − 4 }= \sqrt {x − P′(t) + \sqrt {P(t)(y + 2)}} ± \sqrt { x − P′(t) − \sqrt { P(t)(y + 2)}}$$. <br>
under the condition that<br>
$$ x^{2} − P(t)y^{2} − 2P^{′}(t)x + 4P(t)y + (P^{′}(t))^{2} − 4P(t) − 1 = 0$$. We extend a previous result given by A. S. Sriram and P. Veeramallan