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Two examples are shown here, one relatively easy, then one with some fractions involved.
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This describes the way to represent a series of consecutuve integers, then consecutive odd or even integers so that you can w rite an expression that combines them.
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A brief description of the difference between rational and irrational numbers followed by examples of number in both categories.
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Describes how to deal with denominators that are simply opposite in sign when adding or subtracting fractional expressions.
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Demonstrates what happens when the F.O.I.L. method is applied to multiply two binomails of the form (a + b) (a - b). It's special circumstance that allows a short cut.
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Demonstrates how to graph this tyep of equation by finding three points, but also how you can find just one point and use the slope "m" to find others.
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