Question

Expand i) (2x/3-5y/7)^2 ii) (x/2-2y/3-4z/5)^2​

Answer 1

Answer:

1) (4x^2)/9  +  (25y^2)/49  +  (20xy)/21

2) (x^2)/4  +  (4y^2)/9  + (16z^2)/25   -   2xy/3  +  16yz/15  -  4xz/5

Answer 2

Answer:

expand (5y+7)2

Step-by-step explanation:

(5y+7)2