Question

x-y=2a ax+by=a²+b²find the value of x and y​

Answer 1

Step-by-step explanation:

=>x-y=2a

=>x=2a+y ▪︎▪︎▪︎>[1]

ax+by=a²+b²

a(2a+y)+by=a²+b²

2a²+ay+by=a²+b²

y(a+b)= -a²+b²

y(a+b)=b²-a²

y(a+b)=(b+a)(b-a)

[y=b-a]

=>x=2a+b-a(from equation 1)

[x=a+b]

Answer 2

Step-by-step explanation:

some properties used

(a+b)(a-b)=a²-b²