The answer would be 15 but i am not sure what the problem says her answer is. if it is not 15 then her answer is wrong
His iso youno Hepworth 6 sih
Answer:
an + 1 = an + 2n -1 ,a 1=1
a8= 50
Step-by-step explanation:
an+1=an+2n-1,a1=1
a6=a5+2x5-1
a6=26
a7=26+11
a7=37
a8=37+13
a8=50
In general the binomial expansion is

So in our case, because we want ascending powers of x we'll write,

We need to calculate the binomial coefficients:






12 because the rest of the numbers are all similar except 12