please help me with this question

Suppose the following model of wage determination: Logtw} = 5.95 + 0.56edu - v3.055edu2 + 0.095exp'edu n = 935 Ft2 = 0.135 (0.24) (0.0174) {0.0200} (0.00153) R2{adi]= 0.132 where w: monthly earnings, edu = years of education, exp = years of work experience, Assuming 8 years of experience, what years of education gives the maximum level of wage? Fill in the correct answer in the blank box and if a decimal point appears, round it to TWO decimal places. If your answer is a percent, just put in the numerical value only or the decimal number (if 10%, just enter 10 or 0.1)