15*(1/5)^2-8*1/5 помогите плииз

Question

15*(1/5)^2-8*1/5 помогите плииз

Answer 1

15*(1/5)^2 - 8*1/5 = 1/5*(15*1/5 - 8) = 1/5*(3 - 8) = 1/5*(-5) = -1;