Question 134085
1
x+y=15 (1)and x^2+y^2 =137
x+y)^2 = 15^=225. 2xy = 225-137= 88
x-y)^2 =137-88 = 49, Hence
x-y=7 (2). from (1) and (2) 2x=22 x=11 2y=8 y=4

The other 2 are similar please do it similarly.