Hint for Section 6.7 Question 2

2. The Binomial Theorem states that given any real numbers a and b and any nonnegative integer n,

(a + b)n = n

(

 n ) an-k   bk
S
k
k=0

The coefficient of  m2 n8  in the expansion of (m + n)10 will occur when k = 8. 

Back to Section 6.7
Full solution