What is the coefficient of x3y in −8x3yz2?
Factorise:
3+23z−8z2
The coefficient of x9 in the expansion of 1+x)((1+x2) (1+x3) ⋯ (1+x100) is
The positive value of m for which the coefficient of x2 in the expansion od (1+x)m is 6 is