-(-15m^8n^9)^12 * (-32m^2n^13)^12 / (20m^3n^12)^12 * (-8m^6n^8)^12=
-(-15)^12*m^8*12*n^9*12*(-32)^12*m^3*12*n^13*12 / (20)^12*m^3*12*n^12*12*(-8)^12*m^6*12*n^8*12 =
-(-15)^12*(-32)^12*m^8*12+3*12*n^9*12+13*12 / (20)^12*(-8)^12*m^3*12+6*12*n^12*12+8*12 =
(-(-(5*3))^12*(-(2^5))^12/ (5*2^2)^12*(-(2^3))^12) * (m^8*12+3*12-( 3*12+6*12) * n^ 9*12+13*12-(12*12+8*12))=
(- (5^12*(-3)^12)*(-(2^5))^12 / (5^12*(2^2)^12*(-(2^3))^12) * ( m^(8+3)*12-(3+6)*12) * n^(9+13)*12-(12+8)*12))=
(- (-3)^12)*(-(2^5))^12 / ((-(2^5))^12) * ( m^12*((8+3)-(3+6)) * n^12*((9+13)-(12+8))=
(- (-3)^12) * m^12*(11-9) * n^12*(22-20) =
(- (-3)^12) * m^12*2 * n^12*2 =
(- (-3)*m^2 * n^2)^12 =
(3*(mn)^2)^12 при m=1/300 и n=-1/10
(3*(1/300*(-1/10))^2)^12=
(3*(-1/3^2)*10^-6)^12=
(-3^-1 * 10^-6)^12
как то так наверное