find the constant k so that: - x 2 - ( k + 8 ) x - 8 = - ( x - 2 ) ( x - 4 )	Select: A) 11 B) 12 C) 14 D) 19 E) 15
<gadget id="calculator">4 + 2</gadget>
<output>6</output>

<gadget id="calculator">8 + 6</gadget>
<output>14</output>

<result>C</result>
find the constant k so that: - x 2 - ( k + 8 ) x - 8 = - ( x - 2 ) ( x - 4 )
add(8, add(4, 2))
"- x 2 - ( k + 8 ) x - 8 = - ( x - 2 ) ( x - 4 ) : given - x 2 - ( k + 8 ) x - 8 = - x 2 + 6 x - 8 - ( k + 8 ) = 6 : two polynomials are equal if their corresponding coefficients are equal . k = - 14 : solve the above for k correct answer c"