Question

Find the 3rd term in the expansion of (5x-2)4in the simplest form

Answer 1

-x - 24

Explanation:

first term expansion

(5x-4) ^ 4

(5x -4) (5x-4) (5x-4) (5x-4)

25x - 20 - 20x + 16 + 25x -20-20x + 16

Second term expansion.

25x -20x - 20x + 25x -20 -20 + 16

third term expansion

-25x + 25x -20-20 +16

-x - 24..