20/20 Rational Expressions 4+

The math tutor in your pocket‪.‬

Walter Kissach

    • $0.99

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Description

Rational expressions with cubic, quadratic, linear polynomials ... all clearly explained.

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).

What’s New

Version 8.6

This version contains minor bug fixes.

Ratings and Reviews

Amanda0933 ,

Terrible pretending that you can use it to help you threw work when your stuck

Waste of money do not buy

Musicgeneration ,

Guide

This is not what I expected. I thought it was going to do the work for me, but actually it only goes over the basics with one to two examples. Don't waste your time and money with this, unless if you want a short lesson on how to do it.

marjdes ,

Trash

Horrible app. Not helpful in any way and hard to understand/ work. Total waste of money.

App Privacy

The developer, Walter Kissach, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Supports

  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

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Quadratic Factoring
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20/20 Absolute Value
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Quadratic Equations
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20/20 Linear Equations
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20/20 Radical Equations
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