The teacher will be very surprised to see your correct solution 😉
/ 3*(2*x - 1)\ 2*|-4 + -----------| \ x - 1 / -------------------- = 0 3 (x - 1)
x is not equal to 1
x = -2 / (4)
x is not equal to 1
sum
-1/2
=
-1/2
product
-1/2
=
-1/2
-1/2
x1 = -26848.3164283262
x2 = -27695.7946987581
x3 = 22321.2386858194
x4 = 24016.1387092197
x5 = 29101.0488009739
x6 = -23458.4975607054
x7 = -39561.0687986285
x8 = 27406.0500840294
x9 = 36728.7776750453
x10 = -41256.1646991675
x11 = -20916.2656740033
x12 = -32780.8045021686
x13 = 18931.5978605038
x14 = -30238.2730204878
x15 = 41814.0714037658
x16 = 26558.560482136
x17 = -31933.2889054702
x18 = -33628.3246747929
x19 = 38423.8660224197
x20 = 21473.8063017294
x21 = -21763.6606510427
x22 = -42103.7161137037
x23 = -0.5
x24 = 14695.0253762871
x25 = 20626.3875314369
x26 = -19221.5334766223
x27 = -34475.8490779039
x28 = -37018.4447007215
x29 = 30796.0700428571
x30 = -22611.0718880926
x31 = -14985.2009543217
x32 = -35323.3773999801
x33 = 37576.3205213785
x34 = -42951.2696520293
x35 = -36170.9093593545
x36 = 25711.0782172887
x37 = 29948.5568393353
x38 = 32491.1103661087
x39 = -29390.7736396476
x40 = -20068.8891024259
x41 = -16679.62581338
x42 = 17236.8870383257
x43 = -31085.7782687998
x44 = 34186.1669950756
x45 = 15542.2796505762
x46 = 24863.6040172242
x47 = -40408.6155447319
x48 = 23168.6832377154
x49 = 33338.6367943037
x50 = -28543.2806639325
x51 = 28253.5463802373
x52 = -38713.5246223417
x53 = 16389.5684989387
x54 = -25153.3861846803
x55 = 19778.9840595251
x56 = 35881.2376675692
x57 = -24305.9361075615
x58 = -37865.9831921235
x59 = 18084.231263993
x60 = 40966.5168366584
x61 = 39271.4140096102
x62 = 35033.7007005347
x63 = 31643.5880063979
x64 = 40118.9643283659
x65 = -17526.8977982568
x66 = -15832.3912931372
x67 = -18374.2018269991
x68 = -26000.8466288722
x68 = -26000.8466288722