25 + 14 = blank + 25

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Ineed to know the answer to this algebra question.

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°