Philip P. answered • 03/31/14

Affordable, Experienced, and Patient Algebra Tutor

^{n}. The "k

^{th}" term in an expansion is given by:

^{n-k}b

^{k}

^{10}, a=x, b=5, n=10. What do you have to set k to to get x

^{n-k}= x

^{8}? The term number, then is r = k+1.

^{n-k}b

^{k}to determine exactly what the term is.