Quadratic Equations

Quadratic Equations The Secret Behind Quadratic Equations! Here’s how you can quickly and easily learn quadratic equations of math step by step.   A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. Linear equations can have one or more variables. Linear equations occur with great regularity in applied math. While they arise quite naturally when modeling many phenomena, they are particularly useful since many non-linear equations may be reduced to linear equations by assuming that quantities of interest vary to only a small extent from some “background” state in math, such as this quadratic equations.

Quadratic Equations   A quadratic equation is an equation containing the second power of an unknown but no higher power. The equation is a quadratic equation. A quadratic equation has two roots, both of which satisfy the equation. The two roots of the quadratic equation are x = 2 and x = 3. Substituting either of these values for x in the equation makes it true. The general form of a quadratic equation is the following: The a represents the numerical coefficient of , b represents the numerical coefficient of x, and c represents the constant numerical term. One or both of the last two numerical coefficients may be zero. The numerical coefficient a cannot be zero. If b=0, then the quadratic equation is termed a “pure” quadratic equation. If the equation contains both an x and x2 term, then it is a “complete” quadratic equation. The numerical coefficient c may or may not be zero in a complete quadratic equation. Thus, and are complete quadratic equations.

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