Question

Which expression is equivalent to (2^1/2x2^3/4)^2?

Answer 1

(2^1/2x2^3/4)^2
 ((2^1/2)(2^3/4))^2
 ((2^1/2)^2)((2^3/4)^2)
 (2)(2^3/2)
 (4*2^3)^(1/2)
 (2*2*2^3)^(1/2)
 (*2^5/2)
 The answer for this case is 
  b. sqrt 2^5