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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…
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A demo that shows how to substitute possible x-y ordered pairs into an equation to find out whether they create a true statement, determining which are solutions and which are not.
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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.
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Presents a compound inequality where both sides have to be solved for the variable first, and then shows how to graph the simplified results
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Gives the three possible answers that result from calculating a discriminant, then demonstratew with two different quadratic equations.
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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…
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Two examples that show different possible results from solving a radical equation. You must always check the answer to these.
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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…
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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…
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Looks at the three types of graphs that can occur with a system of two linear equaltions in two variables.
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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…
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Demonstrating how to substitute several values for the variable in an inequality to see if they are valid solutions.
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One type of equation you will have to know how to solve
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Shows how to substitute values for the variable in a simple equation and determine what values, if any, make it equal.
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