-9,65/16-(3,4)^2+9,06 = -9.65/16 - 3.4^2 + 9.06
= -3*5/4 - 11.56 + 9.06
= -15/4 - 11.56 + 9.06
= -3.75 - 11.56 + 9.06
= -6.25 + 9.06
= 2.81

The value of the expression is 2.81.