In the quadratic equation x2 - bx + 20 = 0, if the product of two roots is 20, what is the sum of the two roots? Answers:
A) 20	B) 12	C) 16	D) 14	E) 18
Explanation:   The sum of the roots of the quadratic equation ax2 + ax + c = 0 are (-b/a) and the product of the roots are (c/a).   Thus, in the equation x2 - ax + 20 = 0, where a = 1, b = - a and c = 20.   we get, product of the roots = 20   sum of the roots = -(-12)/ 1= 
<gadget id="calculator">-(-12)/ 1</gadget>
<output>12</output>
12   ANSWER: 12
<result>B</result>
In the quadratic equation x2 - bx + 20 = 0, if the product of two roots is 20, what is the sum of the two roots?