Each option below lists three expressions. which option lists expressions that are not equivalent? a) 81^3/4 ; 27 ; ^4square root of81^3 b) 8 ; ^4square root of16^3 ; 16^.75 c) (625^.25)^3 ; (625^3)^1/4 ; 125 d) 256 ; 1,296^3/4 ; ^4square root of1,296^3

The following expressions are equivalent:
 81 ^ 3/4; 27; ^ 4square root of81 ^ 3
 8; ^ 4square root of16 ^ 3; 16 ^ .75
 (625 ^ .25) ^ 3; (625 ^ 3) ^ 1/4; 125
 The expression that is NOT equivalent is:
 256; 1,296 ^ 3/4; ^ 4square root of1,296 ^ 3
 Because:
 1,296 ^ 3/4 = 216
 
 An option that lists expressions that are not equivalent is:
 D) 256; 1,296 ^ 3/4; ^ 4square root of1,296 ^ 3