1/3 m^3n^2p^3: (-2/3m^2p^2n^2) решите подробно ^-степень

Выражение: 1/3*m^3*n^2*p^3: (-2/3*m^2*p^2*n^2) ответ: -0.5*m*p решаем по действиям: 1. 1/3=(1//3) 2. 2/3=(2//3) 3. (1//3)*m^3*n^2*p^3: //3)*m^2*p^2*n^2)=-(1//3)*m^3*n^2*p^3/(2//3)/m^2/p^2/n^2 4. (1//3)/(2//3)=0.5 5. m^3/m^2=m m^3/m^2=m^(3-2) 5.1. 3-2=1 -3 _2_ 1 6. p^3/p^2=p p^3/p^2=p^(3-2) 6.1. 3-2=1 -3 _2_ 1 7. n^2/n^2=1 решаем по шагам: 1. (1//3)*m^3*n^2*p^3: (-2/3*m^2*p^2*n^2) 1.1. 1/3=(1//3) 2. (1//3)*m^3*n^2*p^3: //3)*m^2*p^2*n^2) 2.1. 2/3=(2//3) 3. -(1//3)*m^3*n^2*p^3/(2//3)/m^2/p^2/n^2 3.1. (1//3)*m^3*n^2*p^3: //3)*m^2*p^2*n^2)=-(1//3)*m^3*n^2*p^3/(2//3)/m^2/p^2/n^2 4. -0.5*m^3*n^2*p^3/m^2/p^2/n^2 4.1. (1//3)/(2//3)=0.5 5. -0.5*m*n^2*p^3/p^2/n^2 5.1. m^3/m^2=m m^3/m^2=m^(3-2) 5.1.1. 3-2=1 -3 _2_ 1 6. -0.5*m*n^2*p/n^2 6.1. p^3/p^2=p p^3/p^2=p^(3-2) 6.1.1. 3-2=1 -3 _2_ 1 7. -0.5*m*p 7.1. n^2/n^2=1

а). х^2=-25.   

б).  3x - 12 = -45. 3x=-45+12. 3x=-33.  x=-11

в). 50х-7=10. 50х=10+7.    50х=17.    х=17/50.    х=0,34