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A straightforward examplel of a simplification using the product rule for exponents.
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Shows how to find outputs for several inputs reslulting in a set of points (x, y)
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This demo takes some thought so you may want to watch it a few times to fully understand. Writing the expression and then we simplify it so that it is more usable in future.
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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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This video demonstrates how to change a description in words into an algebraic expression.
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Some discussion of vocabulary combined with writing a simple expression from a verbal description.
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Given a value for the variable, here a quadratic expression is then calculated with that given value put in place of the variable.
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A quick demo about plugging in given values for variables and calculating a number result.
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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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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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A quick look at distributin a radical across a sum of a whole number and a different radical
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This is an example of how to remove as many factors as possible from under a square root to become a "whole" expression
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