quadratic formula


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Related to quadratic formula: Completing the square, Distance formula

quadratic formula

[kwä′drad·ik ′fȯr·myə·lə]
(mathematics)
A formula giving the roots of a quadratic equation in terms of the coefficients; for the equation ax 2+ bx + c = 0, the roots are x = (-b ± √(b 2- 4 ac)/2 a.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
From the quadratic formula we obtain [x.sub.i] = 7 [+ or -] [square root of 47 - 36]/6 = 7 [+ or -] [square root of 13]/6, i = 1,2
Investigating the Quadratic Formula with VisuMatica
Through algebraic analysis, this can be related to the quadratic formula, as well as the existence of real roots.
For n = 2, the computation does not present any difficulty as one can use the quadratic formula. However, if the degree of the characteristic polynomial is larger than 2, the problem of computing its zeros may be very difficult, if not impossible, to compute exactly.
A value of examining this case is that the derivation requires the use of only elementary statistics (mean, variance, and covariance) and the quadratic formula.
It could have been anything from the quadratic formula to British comedy to French verbs to why anyone would ever eat meat loaf.
The quadratic formula solution and the numerical solution are plotted together in Fig.
To find all other bundles (z, q) which provide the same utility U', one merely sets up the quadratic formula for z, as in [13].
An elective quadratic formula is available to reflect such asset reductions during the calculation of excess related-party indebtedness.
Using The Important Book, they present some wonderful poems that pre-service teachers have written, demonstrating their understanding of the quadratic formula, trigonometry, and angles.