(3x + 2) (2x - 1) = ax^2 + kx + n . What is the value of a - n + k ?	Choices
A) 5  B) 8  C) 9  D) 10  E) 11

Rationale: "expanding we have 6 x ^ 2 - 3 x + 4 x - 2 6 x ^ 2 + x - 2 taking coefficients , a = 6 , k = 1 , n = - 2 therefore a - n + k = 6 - ( - 2 ) + 1 = 8 + 1 = 9 the answer is c ."
Answer: C