if a ( a + 5 ) = 36 and b ( b + 5 ) = 36 , where a ≠ b , then a + b =
"i . e . if a = 4 then b = - 9 or if a = - 9 then b = 4 but in each case a + b = - 9 + 4 = - 5 answer : option b"
add(divide(36, const_10), divide(36, divide(36, const_10)))