Question

Please explain it also ​

Answer 1

Answer:

161/36

Step-by-step explanation:

when the power of fraction is negative the fraction is reversed.

So it becomes

(2/1)^2 + (3/2)^2 - (4/3)^2

= 4+ (9/4) - 16/9

LCM is 36

( 4×36 + 81 - 64)/36

= 161/36

Answer 2

Here is your answer user.