Problem: if x and y are integers such that x ^ 2 = y and xy = 27 , then x – y = ?
Rationale: here x and y are integers . x ^ 2 = y xy = 27 . substitute x ^ 2 = y in xy = > x ^ 3 = 27 . here x 3 is positive , x is also positive . x = 3 then y = 9 . x - y = - 6 so option c is correct
annotated_formula: subtract(power(power(27, divide(const_1, const_3)), const_2), power(27, divide(const_1, const_3)))