In the equation ax^2 + bx + c = 0 a, b, and c are constants, and abc # 0. If one root of the equation is -2, and b = 6a then which of the following is c equal to?  Answers
A) a/12  B) a/8  C) 6a  D) 8a  E) 12a
The sum of the roots is = -b/a = -6a/a = -6. Let the other root be x. Thus, x-2 = -6   x = -4. Again, the product of the roots is   -2*-4= 
<gadget id="calculator">  -2*-4</gadget>
<output>8</output>
8. Thus, c/a= 8. c = 8a.   8a.
<result>D</result>
In the equation ax^2 + bx + c = 0 a, b, and c are constants, and abc # 0. If one root of the equation is -2, and b = 6a then which of the following is c equal to?