Question

if 3y+5y=34 and xy=7, find the value of​

Answer 1

8y = 34

y = 17/ 4

substitute y value

x=7/y

7/17/4

x= 28 / 17

9× 28/17 × 28/17 + 25 × 17/4 × 17/ 4

7056/ 289 + 7225 / 16

2200921 / 4624