Math Video: Basic Algebra|教育線上App不用買-HotApp4Game

This math video app provides a quick and simple way for you to learn and understand the basics for algebra. All of the 7 computer animated videos are stored in your device. So, no internet connection required to play. These math videos are: Introduction to algebra, Combining like terms, Simplifying expressions: adding like terms, Simplifying expression: removing brackets , Evaluating expressions, Basics on solving linear equations and Examples on solving linear equations. Each of these videos is divided into several different parts that you can easily skipped to. More details below: Introduction to Algebra•Introduction •The purpose of algebra •More on the purpose of algebra •Represent the 'numbers' as x •Using different alphabets to represent variables Combining Like Terms •Introduction •Basics: An example on combining like terms •Basics: Another example on combining like terms •Example on combing the terms in x+x+y+y •More examples on identifying like terms Simplifying Expressions: Adding Like Terms•Introduction: Simplifying expressions by adding like terms •Basics: An example on simplifying expressions •Example 1: Simplifying 7u+q-5u+4q •Example 2: Simplifying 7u+3v^2-2u+5v^2 •Example 2: Simplify after arranging the like terms together Simplifying Expression: Removing Brackets •Introduction: Simplifying expressions by removing brackets •Basics: Using 3(2x) as an example •Basics: Using 2(x+1) as an examples •Example 1: Simplify 2(3a)-2(4a-3b) •Example 2: Simplify 3x+2(x+4)-(2x-3) Evaluating Expressions •Introduction •Example 1: Evaluate 2p+2 when p=3 •Example 2: Evaluate 4p+3r when p=3 and r=-2 •Example 3: Evaluate p^3-2r^2-2 when p=3 and r=-2 •Example 4: Evaluate r^2-2pr when p=3 and r=-2 Basics on Solving Linear Equations •The basic ideas in solving x+5=8 •A shortcut in solving x+5=8 •The basic ideas & shortcut in solving x-2=8 •The basic ideas & shortcut in solving 3x=9 •The basic ideas & shortcut in solving x/7=2 Examples on Solving Linear Equations •Introduction•Example 1: Solve 2x-1=5+4x •Example 2: Solve 2(2x-1)=2x+8 •Example 3: Solve 2(x+1)=5-3(x-1) •Example 4: Solve x/4+2=x-1