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WikiCards · Card list · Science cards · Cubic equation
Uncommon card · Science
Cubic equation, an Uncommon card
In algebra, a cubic equation in one variable is an equation of the form a x 3 + b x 2 + c x + d = 0 in which a is not zero.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 81
- DEF
- 70
- Power
- 151
- Wikipedia reads a year
- 170,000
Power 151 (ATK + DEF): stronger than 80 % of WikiCards cards.
Cubic equation quiz: 3 questions
Three questions on the Cubic equation card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The ______ of this equation are called roots of the cubic function defined by the left-hand side of the equation.
Answer
solutions. The solutions of this equation are called roots of the cubic function defined by the left-hand side of the equation. From the Cubic equation article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Long jump. Long jump 85 · Cubic equation 81 · Probability distribution 77 · John Logie Baird 72 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- The solutions of this equation are called roots of the cubic function defined by the left-hand side of the equation.
- If all of the coefficients a, b, c, and d of the cubic equation are real numbers, then it has at least one real root.
- All of the roots of the cubic equation can be found by the following means: algebraically: more precisely, they can be expressed by a cubic formula involving the four coefficients, the four basic arithmetic operations, square roots, and cube roots.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Cubic equation article was read about 170,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 81 and blocks with 70: each hit it takes is cut by 28 %.
How to get Cubic equation
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Cubic equation in the power ranking, all domains together.
- Eugène DelacroixUncommon · Arts · ATK 75 DEF 76
- Fionn mac CumhaillUncommon · Arts · ATK 73 DEF 78
- Long jumpUncommon · Science · ATK 85 DEF 66
- Probability distributionUncommon · Science · ATK 77 DEF 74
- Rostov-on-DonUncommon · Society · ATK 79 DEF 72
- Upper PaleolithicUncommon · History · ATK 75 DEF 76
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Cubic equation (revision), CC BY-SA 4.0. Photo : N.Mori, Public domain, Wikimedia Commons.
