Answer:
Exact Form 67/6
Mixed Number Form 11 1/6
Explanation:
Removed Parenthesis 8/3+(-3)^2-1/2
Group like terms 8/3 - 1/2 + (-3)^2
Apply the exponent rule 8/3 - 1/2 + 3^2
Find the LCM (least common multiple) of 3 & 2; 6
Adjust Fraction based on LCM 8/3 = 8*2/3*2 = 16/6 1/2 = 1*3/2*3 = 3/6
16/6 - 3/6
since denominators are equal combine the fraction

Subtract the numbers 3^2 + 13/6
3^2 = 9 = 9 +13/6
9*6/6 + 13/6
= 67/6