Brian McLogan
How to multiply and divide rational expressions
Learn how to multiply/divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to multiply two fractions, we multiply the numerators...
Brian McLogan
Simplify rational expression with higher exponents and determine excluded values
Simplify rational expression with higher exponents and determine excluded values
Brian McLogan
Simplify Rational Expressions | Rational Functions | Pre-Calculus
In this video we will cover simplifying rational expressions. In addition to simplifying rational expressions we are going to cover simplifying complex fractions, adding, subtracting, multiplying and dividing rational expressions. We...
Flipped Math
Dividing Polynomials
Divide and conquer factoring. Learners see how dividing polynomials is similar to long division of numbers. Pupils learn how to use long division of polynomials to help find factors of higher degree polynomials. They then use their...
Flipped Math
Simplify Rational Expressions
Don't be excluded from learning about rational expressions. Viewers of an educational video first find values that are excluded from the domain of rational expressions. They then see how to simplify rational expressions by factoring the...
Corbett Maths
Dividing Algebraic Fractions
Do the keep, change, flip dance. The resource shows that the division of algebraic fractions follows the same rules as dividing numerical fractions. Pupils understand that if they can multiply rational expressions, they can divide...
Corbett Maths
Multiplying Algebraic Fractions
Make the complicated look relatively simple. The video shows how multiplication of algebraic fractions is easier when they factor the numerators and denominators. Pupils see which factors will cancel, or divide out, easier when writing...
Corbett Maths
Simplifying Algebraic Fractions
Simplification is about factoring. While working with rational expressions, pupils must know how to factor. The video shows how the process of finding common factors in algebraic fractions is similar to finding common factors in...
Krista King Math
How to Calculate the Difference Quotient
The difference quotient looks worse than it is. Determining the difference quotient is the first step in finding the derivative using the definition. The second segment in a series of 31 works through an example of simplifying the...
Krista King Math
Multiplication of Rational Expressions
Cancel that! Young mathematicians see how factoring and canceling can be very beneficial. The presenter works through examples of multiplying two rational expressions where the factors are simplified first. Factoring complex rational...
Krista King Math
Addition and Subtraction of Rational Expressions
A rational expression is a fraction where the denominator and/or the numerator is a polynomial. The resource presents rational expressions and how to add and subtract them. Additionally, the video connects the addition and subtraction of...
Krista King Math
Complex Fractions
Complex fractions are fractions divided by fractions—complicated, right? The video introduces the class to algebraic complex fractions. With the introduction to variables in the denominator, it is important make sure the denominator is...
Krista King Math
Like Terms, Multiplication and Division
Introduce the class to simplifying algebraic expression using multiplication and division. Showing the connection of the rules for exponents between numerical expressions and algebraic expressions, the video works several examples...
Krista King Math
Rationalize the Denominator Using Conjugate Method
Explore properties of conjugates and utilize them to rationalize denominators. The video tutorial begins with an introduction to a conjugate. It then shows the process of using the conjugate to rationalize denominators by working through...
Krista King Math
Division of Rational Expressions
Demonstrate the steps of dividing rational expressions with an instructional video that works through two division problems. Numerators and denominators are quadratic trinomials and include several common factors.
Northeast Arkansas Education Cooperative
Recognizing When a Rational Expression is Undefined
It only takes the denominator to be zero to make an expression undefined. A video resource makes the connection of undefined fractions to rational expressions. It points out that to determine when a rational expression is...
Brightstorm
Introduction to Rational Functions - Concept
Let's be rational about it. An instructive resource provides the definition of rational expressions and rational functions. Examples provide an explanation on how to determine excluded values from the domain. The resource continues...
National Education Association
Simplify Expressions by Factoring
Got that factoring thing down? Time to apply it! A helpful video explains the process of simplifying a rational expression, showing pupils how to factor a majority of expressions using special patterns. Here is a great way to begin...
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring 2
Take your class through the mechanics of simplifying algebraic fractions by factoring trinomials. Though the steps for factoring are assumed known, the process of identifying and canceling common factors are detailed with...
Northeast Arkansas Education Cooperative
Simplify Algebraic Fractions by Factoring
A brief presentation with laser-like focus, this video talks young mathematicians through the mechanics of simplifying algebraic fractions by factoring trinomials. While the factoring itself is assumed to be a mastered skill, the...
FuseSchool
Algebraic Fractions
Simplify and solidify your understanding of algebraic fractions. A short video reviews how to simplify algebraic fractions by first factoring the numerator and denominator. It then goes on to show how to combine algebraic fractions...
Khan Academy
Khan Academy: Algebra: Fractional Exponent Expressions 3
Video simplifying a rational algebraic expression with fractional exponents and a square root. [6:32]
Khan Academy
Khan Academy: Algebra: Adding and Subtracting Rational Expressions
Video showing how to add and subtract rational expressions by finding a common denominator and then simplifying the result. Also includes finding the domain of the result. [8:15]