Question 375941
Pascal's provides the coefficients


1[(2x)^6(-y)^0] + 6[(2x)^5(-y)^1] + 15[(2x)^4(-y)^2] + 20[(2x)^3(-y)^3] + 15[(2x)^2(-y)^4 + ...
___ just follow the pattern to complete the expansion


the sum of the exponents in a term is equal to the power of the binomial