Найду корень уравнения: x + 4/x = 4
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-4)^2 - 4 * (1) * (4) = 0
x = -b/2a = --4/2/(1)
x1 = 2.00000085292067
x2 = 2.00000093653513
x3 = 2.00000094443461
x4 = 2.00000089464813
x5 = 2.00000087458252
x6 = 2.00000096202675
x7 = 2.0000008700156
x8 = 2.00000095498363
x9 = 2.00000099515343
x10 = 2.00000097239951
x11 = 2.00000096937224
x12 = 2.00000084793291
x13 = 2.00000061960434
x14 = 2.00000123238176
x15 = 2.0000008724128
x16 = 2.00000093730268
x17 = 2.0000010106762
x18 = 2.00000085724676
x19 = 2.00000093858214
x20 = 2.00000086735317
x21 = 2.00000097967126
x22 = 2.00000088001029
x23 = 2.00000088293499
x24 = 2.00000089864085
x25 = 2.00000089632332
x26 = 2.00000115224481
x27 = 2.0
x28 = 2.00000089269434
x29 = 2.00000094988865
x30 = 2.00000087835784
x31 = 2.00000094057989
x32 = 2.00000094690535
x33 = 2.00000107317774
x34 = 2.00000093953447
x35 = 2.00000086437892
x36 = 2.00000089038614
x37 = 2.0000009430105
x38 = 2.00000089904651
x39 = 2.00000088423531
x40 = 2.00000089196881
x41 = 2.00000047539458
x42 = 2.00000096002501
x43 = 2.00000069289007
x44 = 2.00000095224689
x45 = 2.00000105077988
x46 = 2.00000094004471
x47 = 2.00000078840093
x48 = 2.00000082702957
x49 = 2.00000089682987
x50 = 2.00000073727657
x51 = 2.00000100220419
x52 = 2.00000088656764
x53 = 2.00000086103466
x54 = 2.00000088153095
x55 = 2.00000096422944
x56 = 2.00000095356247
x57 = 2.00000080446611
x58 = 2.00000093813708
x59 = 2.00000076704686
x60 = 2.00000083525552
x61 = 2.00000102104738
x62 = 2.00000089980922
x63 = 2.00000094114188
x64 = 2.00000095102555
x65 = 2.00000139597165
x66 = 2.00000096666495
x67 = 2.00000098919396
x68 = 2.00000084211911
x69 = 2.00000089821758
x70 = 2.00000089523439
x71 = 2.00000094520963
x72 = 2.00000093904746
x73 = 2.00000089943564
x74 = 2.0000009565236
x75 = 2.0000008912007
x76 = 2.00000089731343
x77 = 2.00000089338073
x78 = 2.00000089403108
x79 = 2.00000088544301
x80 = 2.00000089579211
x81 = 2.00000097580703
x82 = 2.00000094235478
x83 = 2.00000094603174
x84 = 2.00000103403697
x85 = 2.00000088859976
x86 = 2.0000011046779
x87 = 2.00000094370273
x88 = 2.00000081699091
x89 = 2.00000089777553
x90 = 2.00000098409061
x91 = 2.00000095819793
x92 = 2.00000088761748
x93 = 2.00000093691106
x94 = 2.0000008895208
x95 = 2.00000094173275
x96 = 2.00000093771099
x97 = 2.00000094882775
x98 = 2.00000087655569
x99 = 2.00000094783547