In the expansion of (x+a)^3(x-b)^6, the coefficient of x^7 is -9 and there is no x^8 term. Find a and b.
In the expansion of (x+a)^3(x-b)^6, the coefficient of x^7 is -9 and there is no x^8 term. Find a and b.
Find the term that a^8b^9 in the expansion of (2a^2-b)^13 Please explain in detail
Find the Binomial Series of f(x) = (1-x3)-2/3
i need the answer
if the 21st and 22nd terms in the expansion of (1+x)^44 are equal. Find the value of x