1. 1.
    -1
    http://sketchtoy.com/34737644 çözen varmı beyler
    ···
  2. 2.
    +1
    x1^2 + x2^2 = (x1 + x2)^2 - 2*x1*x2

    x1+x2 = -b/a = -1

    x1*x2 = c/a = -7

    (x1 + x2)^2 - 2*x1*x2 = 1 - 2*(-7) = 1 + 14 = 15
    ···
  3. 3.
    +1
    @12 sagol panpa
    ···
  4. 4.
    +1
    15 mi panpa
    http://sketchtoy.com/34737770
    ···
  5. 5.
    +1
    http://sketchtoy.com/34737739
    ···
  6. 6.
    0
    cevap 15 de çözümü yapan yokmu
    ···
  7. 7.
    0
    bunu yapamıyorsan sınava girme.
    ···
  8. 8.
    0
    http://sketchtoy.com/34737806
    ···
  9. 9.
    0
    http://sketchtoy.com/34737812
    ···
  10. 10.
    0
    15 beyler sagolun
    ···
  11. 11.
    0
    http://sketchtoy.com/34737835
    ···
  12. 12.
    0
    http://sketchtoy.com/34737842
    ···
  13. 13.
    0
    Amk liseliler dolusmus yine
    ···
  14. 14.
    0
    x^2+x-7=0
    pq-formülü = -p/2 +- (((p/2)^2)-q)
    p=1
    q=-7

    -1/2 +- (((1/2)^2)--7)
    -0,5 +- (0,25 +7)

    x1= -0,5 + 7,25 = 6,75
    x2= -0,5 - 7,25 = -7,75

    x1 + x2 = 6,75-7,75 = -1
    ···
  15. 15.
    0
    http://sketchtoy.com/34737800
    ···
  16. 16.
    0
    13 amk
    ···
  17. 17.
    0
    soru yanlış
    ···
  18. 18.
    0
    15
    ···
  19. 19.
    0
    15 15 xdxd
    ···
  20. 20.
    0
    @8 çözümü nasıl
    ···