Determine the value(s) for which the rational expression f(x)=(? 11x+1)/(? 30x^2? 25x+5) is undefined. if there's more than one value, list them separated by a comma, e. g. x=2,3.

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?