Scope of quadratic formula - Revision history

Riegler at 08:54, 16 February 2026

2026-02-16T08:54:03Z

← Older revision		Revision as of 08:54, 16 February 2026
Line 1:		Line 1:
	===Description of Bottleneck===		===Description of Bottleneck===
	When using the quadratic formula in the form <math>x=\frac{1}{2} (-p \pm \sqrt{p^2-4q})</math>		When using the quadratic formula in the form <math>x=\frac{1}{2} \left(-p \pm \sqrt{p^2-4q}\right)</math>
	students don’t check whether the the quadratic equation to be solved is in the form		students don’t check whether the the quadratic equation to be solved is in the form
	<math>x^2 + p x + q = 0</math>,		<math>x^2 + p x + q = 0</math>,

Riegler: typsetting formulae

2026-02-16T08:53:27Z

typsetting formulae

← Older revision		Revision as of 08:53, 16 February 2026
Line 1:		Line 1:
	===Description of Bottleneck===		===Description of Bottleneck===
	When using the quadratic formula in the form <math>x=\frac{1}{2} (-p \pm \sqrt{p^2-4q}</math>		When using the quadratic formula in the form <math>x=\frac{1}{2} (-p \pm \sqrt{p^2-4q})</math>

	students don’t check whether the the quadratic equation to be solved is in the form		students don’t check whether the the quadratic equation to be solved is in the form

	<math>x^2 + p x + q = 0</math>,		<math>x^2 + p x + q = 0</math>,
			i.e. that the <math>x^2</math>-coefficient is equal to unity.
	i.e. that the x^2-coefficient is equal to unity.

	That is to say, students don't check whether the prerequisites for the applicability of this formula apply.		That is to say, students don't check whether the prerequisites for the applicability of this formula apply.

Riegler: + math tags

2026-02-12T15:34:16Z

+ math tags

← Older revision		Revision as of 15:34, 12 February 2026
Line 1:		Line 1:
	===Description of Bottleneck===		===Description of Bottleneck===
	When using the quadratic formula in the form x=\frac{1}{2} (-p \pm \sqrt{p^2-4q)		When using the quadratic formula in the form <math>x=\frac{1}{2} (-p \pm \sqrt{p^2-4q}</math>

	students don’t check whether the the quadratic equation to be solved is in the form		students don’t check whether the the quadratic equation to be solved is in the form

	x^2 + p x + q = 0,		<math>x^2 + p x + q = 0</math>,

	i.e. that the x^2-coefficient is equal to unity.		i.e. that the x^2-coefficient is equal to unity.

Riegler: link fix

2026-02-04T12:03:13Z

link fix

← Older revision		Revision as of 12:03, 4 February 2026
Line 1:		Line 1:
	===Description of Bottleneck===		===Description of Bottleneck===
	When using the quadratic formula in the form		When using the quadratic formula in the form x=\frac{1}{2} (-p \pm \sqrt{p^2-4q)
	x=\frac{1}{2} (-p \pm \sqrt{p^2-4q)

	students don’t check whether the the quadratic equation to be solved is in the form		students don’t check whether the the quadratic equation to be solved is in the form
Line 11:		Line 10:
	That is to say, students don't check whether the prerequisites for the applicability of this formula apply.		That is to say, students don't check whether the prerequisites for the applicability of this formula apply.

			This bottleneck is a special case of [[Scope of formula]].
	This bottleneck is a special case of [[~~DecodingWork:Scope of formula\|~~Scope of formula]].
	[[Category:Mathematics]]		[[Category:Mathematics]]
	[[Category:Algebra]]		[[Category:Algebra]]
	[[Category:Bottleneck]]		[[Category:Bottleneck]]

Riegler: Riegler moved page DecodingWork:Scope of quadratic formula to Scope of quadratic formula without leaving a redirect: abandoning DecodingWork-namespce

2024-07-22T14:29:51Z

Riegler moved page DecodingWork:Scope of quadratic formula to Scope of quadratic formula without leaving a redirect: abandoning DecodingWork-namespce

← Older revision	Revision as of 14:29, 22 July 2024
(No difference)

Riegler: Changed categories.

2024-07-17T14:11:13Z

Changed categories.

← Older revision		Revision as of 14:11, 17 July 2024
Line 15:		Line 15:
	[[Category:Mathematics]]		[[Category:Mathematics]]
	[[Category:Algebra]]		[[Category:Algebra]]
			[[Category:Bottleneck]]

Riegler at 18:54, 15 February 2021

2021-02-15T18:54:49Z

← Older revision		Revision as of 18:54, 15 February 2021
Line 13:		Line 13:

	This bottleneck is a special case of [[DecodingWork:Scope of formula\|Scope of formula]].		This bottleneck is a special case of [[DecodingWork:Scope of formula\|Scope of formula]].

	~~===People interested in this Bottleneck===~~
	[[Category:Mathematics]]		[[Category:Mathematics]]
	[[Category:Algebra]]		[[Category:Algebra]]

Riegler at 18:53, 15 February 2021

2021-02-15T18:53:39Z

← Older revision		Revision as of 18:53, 15 February 2021
Line 10:		Line 10:

	That is to say, students don't check whether the prerequisites for the applicability of this formula apply.		That is to say, students don't check whether the prerequisites for the applicability of this formula apply.


			This bottleneck is a special case of [[DecodingWork:Scope of formula\|Scope of formula]].

	===People interested in this Bottleneck===		===People interested in this Bottleneck===
	[[Category:Mathematics]]		[[Category:Mathematics]]
	[[Category:Algebra]]		[[Category:Algebra]]

Riegler: Changed categories.

2021-02-15T18:48:24Z

Changed categories.

← Older revision		Revision as of 18:48, 15 February 2021
Line 12:		Line 12:

	===People interested in this Bottleneck===		===People interested in this Bottleneck===
			[[Category:Mathematics]]
			[[Category:Algebra]]

Riegler: Created page with "===Description of Bottleneck=== When using the quadratic formula in the form x=\frac{1}{2} (-p \pm \sqrt{p^2-4q) students don’t check whether the the quadratic equation to..."

2021-02-15T18:47:38Z

Created page with "===Description of Bottleneck=== When using the quadratic formula in the form x=\frac{1}{2} (-p \pm \sqrt{p^2-4q) students don’t check whether the the quadratic equation to..."

New page

===Description of Bottleneck===
When using the quadratic formula in the form
x=\frac{1}{2} (-p \pm \sqrt{p^2-4q)

students don’t check whether the the quadratic equation to be solved is in the form

x^2 + p x + q = 0,

i.e. that the x^2-coefficient is equal to unity.

That is to say, students don't check whether the prerequisites for the applicability of this formula apply.

===People interested in this Bottleneck===