21.
16*c
Collect the terms in -88264*g**3 + 5*g**2 - 5*g**2 - 87159*g**3 + 175433*g**3.
10*g**3
Collect the terms in 0 - 89224888*d**2 + 1 + 89224608*d**2 - 2.
-280*d**2 - 1
Collect the terms in 18*f + 10*f**2 - 18*f - 32*f**2 + 22*f**2 + 15*f**2.
15*f**2
Collect the terms in 3425 - 1148 + 3*m**2 - 1156 - 1121.
3*m**2
Collect the terms in 30953*u**3 + 67390*u**3 - 22534*u**3.
75809*u**3
Collect the terms in -8425*w + 3566 - 3566 - 3645*w.
-12070*w
Collect the terms in 6*b**2 - 3*b**2 + 108411*b**3 - 3*b**2.
108411*b**3
Collect the terms in -6 + 2 - g**2 + 131*g - 10 - 5*g**2.
-6*g**2 + 131*g - 14
Collect the terms in 2478*a**2 + 2565*a**2 - 8534*a**2 + 2980*a**2.
-511*a**2
Collect the terms in 1139*u + 1135*u + 1162*u - 4650*u + 1216*u.
2*u
Collect the terms in -3522319*k**3 + 7044692*k**3 - 3522371*k**3.
2*k**3
Collect the terms in 6683013*d - 6683013*d + 329*d**3.
329*d**3
Collect the terms in -6 + 1198*i - 23 + 93 - 34 - 29.
1198*i + 1
Collect the terms in 6255*l - 5 + 5 - 4 + 4 - 6256*l.
-l
Collect the terms in 33583*b**3 + 131629*b**3 - 165205*b**3.
7*b**3
Collect the terms in -118 - 135 + 1124*r - 25*r - 134 + 387.
1099*r
Collect the terms in 124*x**2 - 58*x**2 - 24*x**2 - 28*x**2 - 53*x**2 - 19*x**2.
-58*x**2
Collect the terms in -34*f**3 - 8*f + 9*f - 2*f**3 - 17*f + 15*f + 45*f**3.
9*f**3 - f
Collect the terms in 1980 + 6673 - 8653 + 5*w.
5*w
Collect the terms in -1361*j + 170918*j**2 + 1361*j.
170918*j**2
Collect the terms in -4360*q**2 + 1505*q**2 + 698*q**2 - 4838*q**2 - 4466*q**2.
-11461*q**2
Collect the terms in -1999887 + 3999771 - 1999884 - 1484*o.
-1484*o
Collect the terms in -1004362*n + 1004362*n + 365*n**3 - 726*n**3 + 359*n**3.
-2*n**3
Collect the terms in 7*d**2 - 3*d**3 - 44*d**2 + 6*d + 4*d**2 + 0*d**3.
-3*d**3 - 33*d**2 + 6*d
Collect the terms in 6 - 6 + 718*o - 2181*o + 708*o + 719*o.
-36*o
Collect the terms in 3706 - 32*d**3 - 3706 - 12129*d.
-32*d**3 - 12129*d
Collect the terms in 1235*z**2 - 6 + 6 - 7032*z**2 - 5356*z**2.
-11153*z**2
Collect the terms in 34748*d**3 + 52158*d**3 + 70115*d**3.
157021*d**3
Collect the terms in -65047291*n + 20 + 32523646*n - 20 + 32523644*n.
-n
Collect the terms in 21773*t**2 + 2*t**3 - 4*t**3 + 3*t**3 + 21778*t**2 + 21763*t**2 - 65314*t**2.
t**3
Collect the terms in 5827261*q - 2*q**3 - 11655680*q + 5828415*q.
-2*q**3 - 4*q
Collect the terms in 167*r**3 + 16*r - 534158*r**2 - 534152*r**2 + 1068310*r**2 - 16*r.
167*r**3
Collect the terms in -38*a - 37*a + 139*a - 39*a + 5*a - 24*a.
6*a
Collect the terms in 5967*m**3 - 1609*m**3 - 3877*m**3 + 6850*m**3 + 5688*m**3.
13019*m**3
Collect the terms in -1 - 7322311*v + 1.
-7322311*v
Collect the terms in 53*y - 42151 - 1792 - 49974 + 1141.
53*y - 92776
Collect the terms in 1529 + 1477 + 11*v**2 + 8*v**2 - 3007.
19*v**2 - 1
Collect the terms in 352*k**2 - 2*k - 344*k**3 + 27693 - 27693 - 352*k**2.
-344*k**3 - 2*k
Collect the terms in 0*d**2 - 4449 + 2*d**2 + 30513*d - 30511*d.
2*d**2 + 2*d - 4449
Collect the terms in 96400*s + 39559*s + 36106*s.
172065*s
Collect the terms in -2*l + 3788263 - 3788263.
-2*l
Collect the terms in 1949 + 2483 - 1824 + 30*w**2 + 2953.
30*w**2 + 5561
Collect the terms in -26203*d - 9024*d + 7982*d - 16488*d.
-43733*d
Collect the terms in x**3 + x**3 + 23932313813019*x - 23932313813019*x.
2*x**3
Collect the terms in 85638163928*p - 85638163933*p + 2 + 2.
-5*p + 4
Collect the terms in -19945*m + 19965*m + 85922 - 85922.
20*m
Collect the terms in 42314 - 126926 + 8*n + 42306 + 42322.
8*n + 16
Collect the terms in g**2 + 4951*g**3 - 3087*g**3 - 5*g**2 + 4*g**2 - 2410*g**3.
-546*g**3
Collect the terms in 331*b**2 - 329*b**2 + 7*b**2 - 6.
9*b**2 - 6
Collect the terms in 18*b**3 - 8*b**3 + 963 - 8*b**3 - 1089.
2*b**3 - 126
Collect the terms in -7318*a + 2886 - 5784 + 2899.
-7318*a + 1
Collect the terms in -23 - 1445*o - 25 + 50.
-1445*o + 2
Collect the terms in 9968*u**2 + 1981 - 992 + 6445*u**2 - 989.
16413*u**2
Collect the terms in 52*g + 2 + 116*g + 325*g - 5 - 168*g.
325*g - 3
Collect the terms in 70 - 224 + 75 + 79 - 38795*p.
-38795*p
Collect the terms in 2*h - 164288827392 + 164288827392.
2*h
Collect the terms in 211*z - 38*z - 26*z**2 + 4 - 4 + 25*z**2.
-z**2 + 173*z
Collect the terms in 2592*c + 2600*c + 10430 - 5189*c.
3*c + 10430
Collect the terms in 1116376806*z - 372125601*z - 372125600*z - 372125601*z.
4*z
Collect the terms in 22708*m + 22702*m + 22684*m - 68098*m.
-4*m
Collect the terms in 313036*n - 104346*n - 104339*n - 104338*n.
13*n
Collect the terms in 3*d - 1304 + 2567 - 1343.
3*d - 80
Collect the terms in -33499*p**2 - 33503*p**2 + 100555*p**2 - 33545*p**2.
8*p**2
Collect the terms in -2*a**2 - 51848147337780 + 51848147337780.
-2*a**2
Collect the terms in -9*r**2 + 22 - 125363*r - 22 + 41784*r + 41794*r + 41785*r.
-9*r**2
Collect the terms in -1 - 46045*m**2 - 4*m + 9*m - 5*m.
-46045*m**2 - 1
Collect the terms in -l - 9663 + 2548 + 2346 + 3431.
-l - 1338
Collect the terms in 141*k - 87 + 86 + 16739*k - 1803*k.
15077*k - 1
Collect the terms in -8 + 7 - 1 + 3219*r + 3215*r - 6430*r + 2.
4*r
Collect the terms in -22 + 3 + 8*z**3 - 18*z**3 - 45*z**2 + 30.
-10*z**3 - 45*z**2 + 11
Collect the terms in -181*k**3 - 716*k**3 + 259*k**3.
-638*k**3
Collect the terms in 42*d - 32*d**3 + 38*d + 63*d - 177*d + 34*d.
-32*d**3
Collect the terms in 29607858*v - 29607858*v + 6264*v**3.
6264*v**3
Collect the terms in 7277*s + 7146*s + 7277*s - 21695*s.
5*s
Collect the terms in 3649*b + 2 + 3651*b + 2 + 3633*b - 4 - 10931*b.
2*b
Collect the terms in 259289 + 189148 - 34959 - t**3 + 2*t**3.
t**3 + 413478
Collect the terms in 4215 + 4224 + 4218 + 4219 - 364*h - 16876 + 363*h.
-h
Collect the terms in 2828768610010 - 2828768610010 - 156*l.
-156*l
Collect the terms in -4396 - 1885 - 1443 - 143 - 2*j**2 + 628 - j.
-2*j**2 - j - 7239
Collect the terms in -591*g**3 + 423*g**3 - 184*g**3 - 500*g**3 - 1022*g**3.
-1874*g**3
Collect the terms in 1 + 10*k + 0 + 20 - 21.
10*k
Collect the terms in -5*g + 61*g**2 + 125*g + 37*g.
61*g**2 + 157*g
Collect the terms in -14*n - 956 - 958 + 1909 - 253*n.
-267*n - 5
Collect the terms in -8888*u**2 + 29302*u**2 - 382*u**2 + 25197*u**2 - 2269*u**2.
42960*u**2
Collect the terms in -41489*q - 188 - 196 + 384.
-41489*q
Collect the terms in 5*q**2 - 21*q + 3900*q**3 - 2*q**2 - 5790*q**3 - 2*q**2 + 23*q.
-1890*q**3 + q**2 + 2*q
Collect the terms in 12*k + 28*k - 7*k - 134 + 134.
33*k
Collect the terms in -2*r**3 + 75*r - 14*r**3 + 6*r**3 + 8*r**3 - 13*r.
-2*r**3 + 62*r
Collect the terms in -136913*f**2 - 136913*f**2 - 136911*f**2 + 547661*f**2 - 136920*f**2.
4*f**2
Collect the terms in -25*i**2 + 18*i**2 + 3*i**2 + 835.
-4*i**2 + 835
Collect the terms in -24364*a**2 + 36*a**3 - 24417*a**2 + 48781*a**2.
36*a**3
Collect the terms in -26154*l**3 - 42763*l**3 - 6491*l**3 - 3636*l**3.
-79044*l**3
Collect the terms in -5418*t - 5422*t - 3254*t**2 + 16253*t - 5413*t + 3261*t**2.
7*t**2
Collect the terms in 4*h - 22404*h**2 - 23815*h**2 + 12469*h**2.
-33750*h**2 + 4*h
Collect the terms in -11*s**2 - 18782*s**3 + 9386*s**3 + 9403*s**3.
7*s**3 - 11*s**2
Collect the terms in -m**3 + 2*m**3 - 55*m**2 + 98*m - 5*m.
m**3 - 55*m**2 + 93*m
Collect the terms in 16*a**3 + 1 + 9288156065*a**2 - 9288156065*a**2.
16*a**3 + 1
Collect the terms in 1123 - 1123 - 1964*g - 9942*g.
-11906*g
Collect the terms in 82169*p**2 - 41131*p**2 - 560 + 560 - 41045*p**2.
-7*p**2
Collect the terms in 16 - 17 + d + d**2 - d**2 - 482*d**3 + 3235*d**3.
2753*d**3 + d - 1
Collect the terms in 1063*r - 70*r**3 - 1065*r - 55*r**3 - 51*r**3 + 158*r**3.
-18*r**3 - 2*r
Collect the terms in -172 + 44 + 16 + 35 + 66 + r**2 + 139.
r**2 + 128
Collect the terms in 115*w**2 - 40*w**2 - 40*w**2 - 8*w**2 - 4*w**3.
-4*w**3 + 27*w**2
Collect the terms in -89*o - 6*o**3 + o**3 - 26*o + 229*o.
-5*o**3 + 114*o
Collect the terms in 12*k**3 + 381464 + 381467 + 12*k**3 - 762931 - 6*k**2.
24*k**3 - 6*k**2
Collect the terms in 1012*d**2 - 1954*d**2 + d**3 + 942*d**2 - 5*d**3.
-4*d**3
Collect the terms in 9*w + 7*w + 20574*w**3 + 20568*w**3 - 19*w + 3*w - 41137*w**3.
5*w**3
Collect the terms in 4*l + l + 13 + 4*l - 13*l - l + 4*l.
-l + 13
Collect the terms in -92739*z**3 + 26394*z**3 - 3 - 54184*z**3.
-120529*z**3 - 3
Collect the terms in -13 - 15 - 11 + 2308*g**3