Mathematics

Question

Write the first three terms in the binomial expansion, expressing the result in simplifies form.
(x+4)^20
I know that the answer is x^20+80x^19+3040x^18, but i need an explanation on the steps of how to get it. Thanks!

1 Answer

  • You need to foil it out. That's how you get the answer.

    (x+4)^20
    =
    (x+4) x (x+4)^19

    (x+4)^2 x (x+4)^18
    etc. 


NEWS TODAY