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This shows how to represent the two unknowns using their given relationship so that a linear equation can be written using one variable. Then that equation is solved to answer the question
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Shows how to interpret a verbal description into an mathematical equation.
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A quick statement of the property followed by two examples of its use.
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A short demo involving subtracting whole numbers from both sides of an equation. There are two examples.
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Two quick demonstratoins of a rational expression containing radicals being ratioinalized by multiplication of a form of one to transform a radical in the denominantor to a whole number.
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This demonstrates creating a multiplication in the numerator of a rational expression that will allow the expression to be reduced by dividing like factors to simply one
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This demonstrates the squaring of a binomial with radical terms and the multiplication of conjugates (sum and differences of the same terms)
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Demonstrations that emphasize the fact that a fraction bar acts like parentheses in that the each part of the fraction must be factored so that there is a product of factors on both top and bottomof…
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A demonstration of squaring a binomial with radical terms and then a second example showing how conjugate binomials can be multiplied.
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Some simpler examples of square root multiplication
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Two examples of simplifying expressions under a square root symbol to "liberate" as many factors as possible
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Demonstrates how to reduce a complex fraction when the technique of factoring a greatest common factor (GCF) is needed.
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Shows how to use the given factors of two different denominators and find the LCD then adjust the fractions so they can be added
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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 how to adjuxt fractional algebra so that the fractions can be added together
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This shows how to find the least common denominator of two fractions, nothing more.
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