1) (x^6)^2 = x^122) (-x^5)^4 = x^203) x^4 x^3 = x^74) ((x^3)^2)^5 = (x^6)^5 = x^305) (x^10)^3 (x^5)^4 = x^30 x^20 = x^506) (-x^6)^7 (-x^3)^3 : x^15 = (-1)^(7+3) x^(67-3*3) : x^15 = x^14 : x^15 = x^-1 = 1/x
1) (x^6)^2 = x^12
2) (-x^5)^4 = x^20
3) x^4 x^3 = x^7
4) ((x^3)^2)^5 = (x^6)^5 = x^30
5) (x^10)^3 (x^5)^4 = x^30 x^20 = x^50
6) (-x^6)^7 (-x^3)^3 : x^15 = (-1)^(7+3) x^(67-3*3) : x^15 = x^14 : x^15 = x^-1 = 1/x