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  2. Solving quadratic equations with continued fractions - Wikipedia

    en.wikipedia.org/wiki/Solving_quadratic...

    The quadratic equation on a number can be solved using the well-known quadratic formula, which can be derived by completing the square. That formula always gives the roots of the quadratic equation, but the solutions are expressed in a form that often involves a quadratic irrational number, which is an algebraic fraction that can be evaluated ...

  3. Equating coefficients - Wikipedia

    en.wikipedia.org/wiki/Equating_coefficients

    To test whether the third equation is linearly dependent on the first two, postulate two parameters a and b such that a times the first equation plus b times the second equation equals the third equation. Since this always holds for the right sides, all of which are 0, we merely need to require it to hold for the left sides as well:

  4. Sides of an equation - Wikipedia

    en.wikipedia.org/wiki/Sides_of_an_equation

    In solving mathematical equations, particularly linear simultaneous equations, differential equations and integral equations, the terminology homogeneous is often used for equations with some linear operator L on the LHS and 0 on the RHS. In contrast, an equation with a non-zero RHS is called inhomogeneous or non-homogeneous, as exemplified by ...

  5. Equation solving - Wikipedia

    en.wikipedia.org/wiki/Equation_solving

    The methods for solving equations generally depend on the type of equation, both the kind of expressions in the equation and the kind of values that may be assumed by the unknowns. The variety in types of equations is large, and so are the corresponding methods. Only a few specific types are mentioned below.

  6. Cross-multiplication - Wikipedia

    en.wikipedia.org/wiki/Cross-multiplication

    Note that even simple equations like = are solved using cross-multiplication, since the missing b term is implicitly equal to 1: =. Any equation containing fractions or rational expressions can be simplified by multiplying both sides by the least common denominator.

  7. Fraction - Wikipedia

    en.wikipedia.org/wiki/Fraction

    Multiply both sides by the power of 10 (in this case 10 3) that is the same as the number of places that repeat: 10,000,000x = 1,523,987. 987; Subtract the two equations from each other (if a = b and c = d, then a − c = b − d): 10,000,000x − 10,000x = 1,523,987. 987 − 1,523. 987; Continue the subtraction operation to clear the repeating ...