If a(a + 5) = 36 and b(b + 5) = 36, where a ≠ b, then a + b =
Choices
A) −48 B) −5 C) 2 D) 46 E) 48
i.e. if a = 4 then b = -9   or if a = -9 then b = 4   −5ut in each case a+b = -9+4 = -5   Answer: option −5
<result>B</result>
If a(a + 5) = 36 and b(b + 5) = 36, where a ≠ b, then a + b =