
Starts with cautiioning against multiplying the factors back together and describes the zero product property to justify this warning. Then shows how to continue from the factored form to separate…


A demo that shows how to substitute possible xy ordered pairs into an equation to find out whether they create a true statement, determining which are solutions and which are not.


This describes how to solve each side of a compound inequality, then using the graphs of each part determine the interval notation for the entire compound statement.


Presents a compound inequality where both sides have to be solved for the variable first, and then shows how to graph the simplified results


Gives the three possible answers that result from calculating a discriminant, then demonstratew with two different quadratic equations.


Two examples here of solving radical equations. Both have one radical that each need isotation before squaring both sides.. Emphasis is p laced on checking your answer because the one arrived at…


Two examples that show different possible results from solving a radical equation. You must always check the answer to these.


Shows how to find a common denominator to use as a multiplier for each term in a rational equation (an equation with fractions) to then eliminate the denotminators and the result will be a more…


This has two examples so that you can learn to watch out for what looks like a solution but is not because it creates division by zero if you check the answer in the original equation. The other…


Looks at the three types of graphs that can occur with a system of two linear equaltions in two variables.


This demonstrates testing possible answers to a system of two equations to see whether they are truly answers or not. Note that each answer has to work for both equations, but if it doesn't…


Demonstrating how to substitute several values for the variable in an inequality to see if they are valid solutions.


One type of equation you will have to know how to solve


Shows how to substitute values for the variable in a simple equation and determine what values, if any, make it equal.
