Find k, given that -k4 + 4983*k3⁄4 - 393143*k**2⁄4 - 126678*k + 149769 = 0.

-2, 3⁄4, 86, 1161

Find a, given that -3*a3 + 187689*a2 - 2935315173*a - 8807634801 = 0.

-3, 31283

Determine k, given that -4*k**2 - 85296*k + 2648020 = 0.

-21355, 31

Factor 30*h**2⁄7 - 18988*h + 70880⁄7.

2(h - 4430)(15*h - 8)/7

Find s such that -2*s4 - 26262*s3 - 393624*s**2 - 1888920*s - 2833056 = 0.

-13116, -6, -3

Factor 5*r4 - 270*r3 + 2455*r**2 - 3870*r.

5r(r - 43)(r - 9)(r - 2)

What is a in -5*a5 + 1318665*a4 + 1318670*a**3 = 0?

-1, 0, 263734

Find o, given that 3*o5 + 2652*o4 - 29445*o3 + 80550*o2 = 0.

-895, 0, 5, 6

Factor 45176*j**2⁄5 - 54211*j - 6⁄5.

(j - 6)*(45176*j + 1)/5

Factor -f4 - 167*f3 + 884*f**2 + 4128*f.

-f(f - 8)(f + 3)*(f + 172)