Find the constant k so that : -x2 - (k + 9)x - 8 = -(x - 2)(x - 4)  Choose the correct choice.
A) 11	B) 12	C) 15	D) 14	E) 19

Rationale: - x 2 - ( k + 9 ) x - 8 = - ( x - 2 ) ( x - 4 ) : given - x 2 - ( k + 9 ) x - 8 = - x 2 + 6 x - 8 - ( k + 9 ) = 6 : two polynomials are equal if their corresponding coefficients are equal . k = - 15 : solve the above for k correct answer c
Answer: C