The second, third and fourth terms in the binomial expansion (x+a) n are 240,720 and1080 respectively. Find x and n.
The second, third and fourth terms in the binomial expansion ( x + a ) n are 2 4 0 , 7 2 0 …
The second, third and fourth terms in the binomial expansion ( x + a ) n are 2 4 0 , 7 2 0 …