How would i do this?

Question

Use the binomial theorem to expand (2x – 5y)^3

Answer 1

Seems like this one came through recently

(2x-5y)^3 =
(2x)^3 - 3(2x)^2)(5y) + 3(2x)(5y)^2 - (5y)^3
= 8x^3 - 60x^2y + 150xy^2 - 125y^3

Answer 2

thank you, Steve :)