Question

Please solve :-
n/2(3n-1)
Plz do it step by step

Answer 1

$\frac{n}{2} (3n - 1) \\ = \frac{ {3n}^{2} }{2} - \frac{ n}{2} \\ = \frac{3 {n}^{2} - n}{2}$

Answer 2

Answer: 3n^2-1/2

Step-by-step explanation:

n/2(3n-1)

n(3n-1)/2    

= 3n^2-1/2