## raebaby420 2 years ago Please help me.. c: What is one of the solutions to the following system of equations? y2 + x2 = 53 y − x = 5 (−10, −5) (−7, −2) (7, 2) (5, 10)

1. Jamierox4ev3r

first you can make the numbers the same y-x=5 can equal y^2-x^2=5^2 then you solve. Does this make sense? @raebaby420 ?

2. raebaby420

Make numbers the same?

3. AkashdeepDeb

@Jamierox4ev3r How is yix=5 y^2-x^2 = 25 ???

4. Jamierox4ev3r

well thats the way i learned it... because 5^2=25 does it not?

5. AkashdeepDeb

@raebaby420 All you've got to do is use some identities! :D do you know the value of (x+y)^2 and (x-y)^2 ?

6. raebaby420

Whatttt?

7. raebaby420

Math is a different language to me and all you guys are doing is confusing me even more :c

8. AkashdeepDeb

Haha..Sorry! Know this =! Inthis question we can eliminate the bottom 2 choices!

9. AkashdeepDeb

C) (x,y) = (7,2) but y-x = 5 And 2-7 = -5 [SO ELIMINATE THIS] D) cannot be eliminated yet!

10. AkashdeepDeb

Do you know any Identity?

11. raebaby420

No..

12. raebaby420

Math is not my subject.. science im good at... math is me flunking!

13. AkashdeepDeb
14. raebaby420

Sure

15. AyyoDutches

s whats the awnser