(3x + 1) (2x - 5) = ax^2 + kx + n . What is the value of a - n + k ?
Select the correct option: A) 5 B) 8 C) 9 D) 14 E) 11
Expanding we have 6x^2 - 15x + 2x -5   6x^2 - 13x - 5   Taking coefficients, a = 6, k= -13, n = -5   Therefore a - n + k = 6 - (-13) - 5 = 19 - 5= 
<gadget id="calculator">19 - 5</gadget>
<output>14</output>
14   The answer is 14.
<result>D</result>
(3x + 1) (2x - 5) = ax^2 + kx + n . What is the value of a - n + k ?