Question

What should be added to the sum
of x ² - 5y + xy and by 6y2 - 10 xy
+ x² to get 5y² + 15xy.​

Answer 1

Step-by-step explanation:

x²-5y+xy+6y²-10xy+x²=5y² + 15xy

2x²-9xy-5y+6y²-5y² -15xy=0

2x²+y²-24xy-5y