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Q.
(3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ?
A.
4
B.
1
C.
5
D.
3
View Answer
Correct choice: C
Explanation:
(3x + 2) (2x - 5) = ax2+kx+n ...............(1) But (3x + 2)(2x - 5) = 6x2−11x−10 ........(2) so by comparing (1) & (2), we get a= 6, k= -11 , n= -10 (a - n + k) = 6 + 10 - 11 = 5.
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