Question

expand : (2x/y + y/2x)³​

Answer 1

Answer:

8x³/y³ + 6x/y + 3y/2x + y³/8x³

Step-by-step explanation:

(a+b)³=a³+3a²b+3ab²+b³

a= 2x/y

b = y/2x

(2x/y + y/2x)³​ = (2x/y)³ + 3(2x/y)²(y/2x) + 3(2x/y)(y/2x)² + (y/2x)³

= 8x³/y³ + 6x/y + 3y/2x + y³/8x³

This is the expansion.

Hope it helps!