Question

(3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ?
A) 4
B) 1
C) 5
D) 3

Answer 1

(3x + 2) (2x - 5) = ax² + kx + n = 6x² - 11x -10

so a= 6, k= -11 , n= -10

a - n + k = 6+10-11= 5

Answer 2

Answer:

equation gives us

equation gives us a = 6

equation gives us a = 6k = -11

equation gives us a = 6k = -11n = -10

a-n+k

=6+10-11

5