El profesor se sorprenderá mucho al ver tu solución correcta😉
Dividamos ambos miembros de la ecuación en -2
suma
5*pi 13*pi ---- + ----- 12 12
=
3*pi ---- 2
producto
5*pi 13*pi ----*----- 12 12
=
2 65*pi ------ 144
65*pi^2/144
5*pi x1 = ---- 12
13*pi x2 = ----- 12
x2 = 13*pi/12
x1 = 82.9904059323304
x2 = 45.2912940892529
x3 = 28.5361332701073
x4 = 66.2352451131848
x5 = 39.0081087820733
x6 = 3.40339204138894
x7 = -15.4461638801498
x8 = -53.1452757232273
x9 = -84.5612022591253
x10 = -65.7116463375865
x11 = 97.6511716490827
x12 = 1.30899693899575
x13 = -55.2396708256205
x14 = -78.2780169519457
x15 = -99.2219679758776
x16 = 91.3679863419031
x17 = 64.1408500107916
x18 = -46.8620904160477
x19 = -74.0892267471593
x20 = 89.27359123951
x21 = -2.87979326579064
x22 = -71.9948316447661
x23 = 59.9520598060052
x24 = 15.9697626557481
x25 = -61.5228561328001
x26 = 7.59218224617533
x27 = -40.5789051088682
x28 = 32.7249234748937
x29 = 57.857664703612
x30 = -11.2573736753634
x31 = 78.801615727544
x32 = -30.1069295969022
x33 = 13.8753675533549
x34 = -21.7293491873294
x35 = -36.3901149040818
x36 = -28.012534494509
x37 = 110.217542263442
x38 = -67.8060414399797
x39 = -59.4284610304069
x40 = 41.1025038844665
x41 = 53.6688744988256
x42 = 22.2529479629277
x43 = -48.9564855184409
x44 = -17.540558982543
x45 = 34.8193185772869
x46 = 85.0848010347236
x47 = -80.3724120543389
x48 = -34.2957198016886
x49 = -4.97418836818384
x50 = 51.5744793964324
x51 = -23.8237442897226
x52 = 9.68657734856853
x53 = 95.5567765466895
x54 = -42.6733002112614
x55 = -90.8443875663049
x56 = 47.3856891916461
x57 = 72.5184304203644
x58 = -86.6555973615185
x59 = 26.4417381677141
x60 = 20.1585528605345
x61 = 103.934356956262
x62 = -306.567083112804
x63 = -92.9387826686981
x64 = 70.4240353179712
x65 = -97.1275728734844
x66 = 76.7072206251508
x67 = -9.16297857297023
x68 = 342.695398629087
x68 = 342.695398629087