Cribrarula exmouthensis
Cribrarula exmouthensis is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.[1]
| Cribrarula exmouthensis | |
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| Species: | C. exmouthensis |
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| Cribrarula exmouthensis (Melvill, 1888) | |
Subspecies
- Cribrarula exmouthensis abrolhensis Lorenz, 2002
- Cribrarula exmouthensis exmouthensis (Melvill, 1888)
- Cribrarula exmouthensis magnifica Lorenz, 2002
- Cribrarula exmouthensis rottnestensis Lorenz, 2002
Description
Distribution
gollark: Although I don't know why you can't long-divide it, p and q are just constants for the purposes of that.
gollark: That lets you work out a/b/c/d, which you can substitute back into (x-1)(ax^3+bx^2+cx+d).
gollark: So:2 = a (x^4 terms)p = b - a (x^3 terms)-6 = c - b (x^2 terms)q = d - c (x terms)6 = -d (constant terms)
gollark: So you can do `2x^4+ px^3 - 6x^2 + qx + 6 = ax^4 + (b-a)x^3 + (c-b)x^2 + (d-c)x - d`, and you know the coefficients on x^4 and so on should be equal.
gollark: Which you can then simplify to ax^4 + (b-a)x^3 + (c-b)x^2 + (d-c)x - d.
References
- Cribrarula exmouthensis . WoRMS (2009). Cribrarula exmouthensis. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=396631 on 5 June 2010 .
- Lorenz & Hubert (2000). A guide to worldwide cowries. ConchBooks 1-584 page(s): 178
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