Question

caxtsy
Show that( 9x-5y
- 5y)2 + 180 xy
=(9x+5y)
​

Answer 1

Answer:

(9x-5y-5y)2+180xy=9x+5y

2(9x-10y)+180xy=9x+5y

18x-20y+180xy=9x+5y

180xy=25y-9x