10. Calculati:
a) (-10)^12 : (-100)^5 + (-49)^5 : 343^3 + (-10)^2
b) [5^7 * (-5)^6 :(-5)^12]^10 : [(-5)^2]^4 -(-5)^2
c) (2^5)^4 :[2^5 *(-2^3)^6:(-2^2)^5]
d) 9^12*(-3^8):[(-9^3^2)-81]^2:[(-5^3 +2^2)^5]^0​