Question 1179416


Binomial

{{{(3x -y)^12}}}

we need this term: {{{ax^4y^8}}}


{{{(12C8)(3x)^(12-8)*y^8}}}
={{{(12C8)(3x)^(12-8)*y^8}}}
={{{495(3x)^4*y^8}}}
={{{495*3^4*x^4*y^8}}}
={{{40095x^4*y^8}}}