Write the first three terms (simplified) in the expansion of:

Question

a) (𝑥^3 − 2𝑥)^8

Answer 1

(x^3)^8 - 8 (x^3)^7 2x + 28 (x^3)^6 (2x)^2

x^24 - 16 x^22 + 112 x^20