Question

(A^3- 2 )^10 = (A^18)

Answer 1

(A^3- 2 )^10 = (A^18)

(A^3)^10 - 2^10 = A^18
 A^30 - A^18 = 2^10 
A^18(A^12 -1 ) = 2^20

A^18 =        2^20    
                (A^12 - 1)