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what does cubic equation mean in math. It could easily be mentioned in many undergraduate math courses though it doesnt seem to appear in most textbooks used for those courses. In arithmetic and algebra the cube of a number n is its third power that is the result of multiplying three instances of n together.
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The cubic formula tells us the roots of a cubic polynomial a polynomial of the form ax3bx2cxd. The basic cubic function f x x 3 is graphed below. The volume of a unit cube whose length width and height are 1 unit each is 1 cubic unit.
N 3 n n 2 n n n.
The oldest cubic equation to be studied was the algebraic version of the famous geometric problem of doubling the cube the so-called Delian problem which in algebraic terms is equivalent to solving the equation x ³2. A polynomial of degree 3. Cubic-equation definitions mathematics A polynomial equation whose greatest exponent is 3. Maths of relating to or containing a variable to the third power or a term in which the sum of the exponents of the variables is three.
