20/20 Rational Expressions
The math tutor in your pocket.
USD 0.99
8.4for iPhone, iPad and more
Age Rating
لقطات الشاشة لـ 20/20 Rational Expressions
About 20/20 Rational Expressions
A power learning aid combines Guides, Practice and Coaching Calculators to help students master rational expression or rational fraction simplification and rational equation solving.
Rational expression Practice and Coaching Calculators take you step-by-step through the simplification of expressions such as :
(6x³ + 7x² - 1)/(2x² + 3x + 1)
(x² + 6x + 8)/(x + 2)
(x² - 5x + 6)/(14 + 3x - 5x²)
(3x - 9)/(6x - 12)
Detailed steps :
- Factoring out numeric or algebraic factors
- Factoring linear numerators/denominators
- Factoring quadratic numerators/denominators
- Factoring cubic numerators/denominators
- Dividing out or canceling common factors
Rational equation Practice takes you step-by-step through the solving of equations such as :
(5x + 3)/4 + (1 + 3x)/5 = 4/5
2/(3x²) + 5/x = 3/(4x)
1/(3x + 6) - 3/(5x² + 8x - 4) = -5/(15x - 6)
(2x - 1)/(3x + 2) - (1 - x)/(6x² + 7x - 2) = 7/20
Detailed steps :
- Factoring denominators
- Finding Least Common Denominator (LCD)
- Multiplying through by LCD or making each term have LCD
- Solving resulting linear or quadratic equation
The Guide also covers the addition and subtraction of rational expressions such as
3/(x + 1) + 2x/(x² - 6x - 7)
and the multiplication and division of rational expressions such as
(x² - 1)/(9x² - 1) * (6x + 2)/(3x² - 3x).
Rational expression Practice and Coaching Calculators take you step-by-step through the simplification of expressions such as :
(6x³ + 7x² - 1)/(2x² + 3x + 1)
(x² + 6x + 8)/(x + 2)
(x² - 5x + 6)/(14 + 3x - 5x²)
(3x - 9)/(6x - 12)
Detailed steps :
- Factoring out numeric or algebraic factors
- Factoring linear numerators/denominators
- Factoring quadratic numerators/denominators
- Factoring cubic numerators/denominators
- Dividing out or canceling common factors
Rational equation Practice takes you step-by-step through the solving of equations such as :
(5x + 3)/4 + (1 + 3x)/5 = 4/5
2/(3x²) + 5/x = 3/(4x)
1/(3x + 6) - 3/(5x² + 8x - 4) = -5/(15x - 6)
(2x - 1)/(3x + 2) - (1 - x)/(6x² + 7x - 2) = 7/20
Detailed steps :
- Factoring denominators
- Finding Least Common Denominator (LCD)
- Multiplying through by LCD or making each term have LCD
- Solving resulting linear or quadratic equation
The Guide also covers the addition and subtraction of rational expressions such as
3/(x + 1) + 2x/(x² - 6x - 7)
and the multiplication and division of rational expressions such as
(x² - 1)/(9x² - 1) * (6x + 2)/(3x² - 3x).
Show More
تحديث لأحدث إصدار 8.4
Last updated on 09/04/2024
الإصدارات القديمة
This version has minor bug fixes.
Show More
Version History
8.4
11/12/2022
This version has minor bug fixes.
8.3
06/09/2022
This version contains minor bug fixes and enhancements.
8.2
05/11/2021
iOS 15 compatibility and user interface improvements. Minor bug fixes.
8.1
03/09/2021
New cross multiplication practice. Minor bug fixes.
8.0
24/08/2021
Minor bug fixes in rational equation module.
7.9
21/08/2021
Major revision includes practice modules for rational equations.
7.8
23/01/2020
Minor bug fixes and enhancements.
7.7
15/01/2020
Minor bug fixes and app streamlining. Secondary modules are moving to free apps for you to GET if you wish.
7.6
25/09/2019
iOS 13 and iPadOS compatibility.
7.5
19/01/2019
Minor bug fixes.
7.4
18/12/2018
Major release with new guides, practice modules and coaching calculators.
7.3
17/09/2018
Practice module has graded worked examples for rapid learning. iOS 12 compatibility.
7.2
01/09/2018
Cubic expression support with entry in ascending or descending order. Detailed explanations of each step.
7.1
17/11/2017
iOS 11 and iPhone X compatibility and minor bug fixes.
7.0
18/09/2016
iOS 10 compatibility and bug fixes.
6.1
26/09/2015
iOS 9 compatibility and bug fixes.
6.0
12/03/2015
Improved Guides for iPhone 6 and iPhone 6 Plus and minor bug fixes.
5.0
26/09/2013
iOS 7 version.
4.2
26/02/2013
iPhone 5 optimization and minor improvements.
4.1
26/09/2012
iOS 6 and iPhone 5 compatibility.
4.0
03/07/2012
New quadratic factoring modules and new compact design..
3.0
18/10/2011
Major revision that features a powerful Coaching Calculator. Numerators and denominators can be quadratic, linear, constant or zero polynomials.
2.2
08/01/2011
Minor bug fixes.
2.1
14/12/2010
Minor bug fixes and layout changes.
2.0
06/11/2010
New menu system. Guide revision.
20/20 Rational Expressions FAQ
انقر هنا لمعرفة كيفية تنزيل 20/20 Rational Expressions في بلد أو منطقة محظورة.
تحقق من القائمة التالية لمعرفة الحد الأدنى من المتطلبات 20/20 Rational Expressions.
iPhone
Requiere iOS 14.0 o posterior.
iPad
Requiere iPadOS 14.0 o posterior.
iPod touch
Requiere iOS 14.0 o posterior.
20/20 Rational Expressions هي مدعومة على اللغات Inglés