if a ^ 2 + b ^ 2 = 15 and ab = 25 , what is the value of the expression ( a - b ) ^ 2 + ( a + b ) ^ 2 ?
"( a - b ) ^ 2 = a ^ 2 + b ^ 2 - 2 ab = 15 - 25 = - 10 ( a + b ) ^ 2 = a ^ 2 + b ^ 2 + 2 ab = 15 + 25 = 40 so ( a + b ) ^ 2 + ( a - b ) ^ 2 = 40 - 10 = 50 e"
add(multiply(sqrt(15), const_10), const_3)