Dividing Rational Expressions
The procedure for dividing rational expressions is demonstrated.
Does Order of Operations Matter?
Algebra includes addition, subtraction, multiplication and division which are called operations. In an algebraic expression, these operations are completed in a certain order. The order of these operations is discussed in this clip.
Percent in Word Problems: Reviewing Proportion
This clip reiterates that proportion is the key idea in all work with percent. The clip notes that while there may be quicker ways to handle a percent problem, we can always get started with this type of problem by setting up a proportion because, "...
Example of Multiplying Both Equations
There is always more than one way to solve a system of equations with the elimination method. This example includes tips for deciding which term to eliminate.
Example of Solving Systems with Fractions
Solving another system of equations using multiplication and the least common denominator to find the solution.
Examples of Algebraic Expressions: 'two times y' and 'two y plus 5'.
Two examples of algebraic expressions that demonstrate how a letter next to a number indicates multiplication; 2Y and 2Y 5.
Example of Using Multiplication to Change Terms
Two different ways of using multiplication in a system of equations to eliminate a variable are demonstrated.
Multiply a Binomial by a Monomial
A practical problem demonstrating multiplication of a binomial by a monomial.
Multiplying then Simplifying Two Radicals
The procedure for simplifying radicals by beginning with multiplication is demonstrated.
Other Examples using Parentheses in Mathematics
Using parentheses to clarify an expression. Evaluating expressions containing parentheses within parentheses.