if x # y is defined to equal x ^ 2 / y for all x and y , then ( - 1 # 2 ) # 2 =
"( - 1 ) ^ 2 / 2 = 1 / 2 ( 1 / 2 ) ^ 2 / 2 = 1 / 8 so d is my answer"
divide(power(divide(power(negate(1), 2), 2), 2), negate(2))