15 times a positive integer is more than its square by 56 , then the positive integer is
explanation : let the number be x . then , 15 x = x 2 + 56 = > x 2 - 15 x + 56 = 0 = > ( x - 7 ) ( x - 8 ) = 0 = > x = 7 or 8 answer : option b
divide(add(15, subtract(power(15, const_2), multiply(56, const_4))), const_2)