5n+2+35×5n-14×5n এর মান কত?
A
5
B
4
C
8
D
7
Correct Answer: 8
5n + 2 + 35×5n - 14×5n = 5.52 + 35.5n154×5n = 25×5n + 7×5n4×5n = 32×5n4×5n = 8