(3x + 2) (2x - 3) = ax^2 + kx + n . What is the value of a - n + k ? Choose the correct choice
A) 5  B) 7  C) 9  D) 10  E) 11
Expanding we have 6x^2 - 9x + 4x -6   6x^2 - 5x - 6   Taking coefficients, a = 6, k= -5, n = -6   Therefore a - n + k = 6 - (-6) - 5 = 12 - 5= 
<gadget id="calculator">12 - 5</gadget>
<output>7</output>
7   The answer is 7.
<result>B</result>
(3x + 2) (2x - 3) = ax^2 + kx + n . What is the value of a - n + k ?