Find r, given that -3*r5 - 2109*r4 - 477933*r3 - 35033379*r2 - 197522640*r - 290001600 = 0.

-280, -137, -3

Suppose d**2⁄8 - 94503*d/2 + 378011⁄8 = 0. Calculate d.

1, 378011

Solve y**2⁄4 - 67*y/4 - 2289⁄2 = 0.

-42, 109

Determine w, given that w5⁄2 - 391*w4 + 3097*w3⁄2 + 5844*w2 - 7002*w = 0.

-3, 0, 1, 6, 778

Factor 2*a**2 - 1057416*a + 139766074632.

2*(a - 264354)**2

Determine o, given that -2*o3⁄11 + 9930*o2⁄11 - 13812624*o/11 + 3572328096⁄11 = 0.

333, 2316

Factor u5 + 3263*u4 + 13040*u3 + 13036*u2.

u2*(u + 2)2*(u + 3259)

Solve -4*h3 - 854936*h2 - 854924*h + 1709864 = 0.

-213733, -2, 1

Suppose -10*a5 - 2725*a4 - 225285*a3 - 5257145*a2 - 21954905*a + 12320070 = 0. Calculate a.

-119, -29, -6, 1⁄2

Let 4*s**2 + 33900616*s + 71828235323716 = 0. What is s?

-4237577