Question

how to expand (2x÷3y+3y÷2x)square ​

Answer 1

Answer:

...................................

Answer 2

It becomes easier if you take $t=\frac{2x}{3y}$.

$(t+\frac{1}{t} )^2$

$t^2+2+\frac{1}{t^2}$

Put t back in.

$\frac{4x^2}{9y^2} +2+\frac{9y^2}{4x^2}$

See how easier it is. Try now!