Question

Can someone teach me how do these?

http://gyazo.com/4d11ee9eee0f86b13683c10cf65d47d5

Thanks! :D

Answer 1

@AkashdeepDeb

Answer 2

I think you have to find equations which satisfies both the condition given

25. x^2 + y^2 = 13; (2, 3)
so if you put x =2 and y = 3 in the equation you will have 13. Now find the equation that uses (2,3) as its solution