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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)

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  1. Jamierox4ev3r
    • 2 years ago
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    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
    • 2 years ago
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    Make numbers the same?

  3. AkashdeepDeb
    • 2 years ago
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    @Jamierox4ev3r How is yix=5 y^2-x^2 = 25 ???

  4. Jamierox4ev3r
    • 2 years ago
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    well thats the way i learned it... because 5^2=25 does it not?

  5. AkashdeepDeb
    • 2 years ago
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    @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
    • 2 years ago
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    Whatttt?

  7. raebaby420
    • 2 years ago
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    Math is a different language to me and all you guys are doing is confusing me even more :c

  8. AkashdeepDeb
    • 2 years ago
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    Haha..Sorry! Know this =! Inthis question we can eliminate the bottom 2 choices!

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

  10. AkashdeepDeb
    • 2 years ago
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    Do you know any Identity?

  11. raebaby420
    • 2 years ago
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    No..

  12. raebaby420
    • 2 years ago
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    Math is not my subject.. science im good at... math is me flunking!

  13. AkashdeepDeb
    • 2 years ago
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    Try this? ~ http://www.math.com/tables/algebra/polynomials.htm

  14. raebaby420
    • 2 years ago
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    Sure

  15. AyyoDutches
    • 2 years ago
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    s whats the awnser

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