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 = 10a then which of the following is c equal to?  Choose the correct option:
A) a/12	B) a/8	C) 6a	D) 8a	E) 16a
The sum of the roots is = -b/a = -10a/a = -10. Let the other root be x. Thus, x-2 = -10   x = -8. Again, the product of the roots is   -2*-8= 
<gadget id="calculator">  -2*-8</gadget>
<output>16</output>
16. Thus, c/a= 16. c = 16a.   16a.
<result>E</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 = 10a then which of the following is c equal to?