Question

expand (2x-1)^5
Ans as soon as possible​

Answer 1

Step-by-step explanation:

let w = 2x , z = -1

then you polynomial becomes

(2x-1)^5 = ( w + z )^5

(w+z)^5 = w^5 + 5w^4z + 10w^3 z^2 + 10w^2 z^3 + 5wz^4 +z^5

now insert the values of w and z

( 2x-1)^5 = 2x^5 + 5×2x^4(-1) + 10(2x)^3 (-1)^2 + 10(2x)^2 (-1)^3 + 5(2x) (-1 )^4 + (-1)^5

(2x-1 )^5 = 32x^5 - 80x^4 + 80x^3 -40x^2 +10x -1

Hope it helped you ☺☺