If a(a - 4) = 12 and b(b -4) = 12, where a ≠ b, then a + b =
Choose the correct choice from the following options.
A) −48
B) −5
C) 4
D) 46
E) 48
i.e. if a = 6 then b = -2   or if a = -2 then b = 6   But in each case a+b = -2+6= 
<gadget id="calculator">-2+6</gadget>
<output>4</output>
4   Answer: option 4
<result>C</result>
If a(a - 4) = 12 and b(b -4) = 12, where a ≠ b, then a + b =