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Algebra

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Multiplication and Division of Radicals
Multiplication and Division of Radicals 150 150 Deborah

Overview: Multiplication and division of radicals use the same properties as other types of multiplication.  It is much easier to simplify expressions before they are used in an expression.  Also,…

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Math Review of Simplifying Radicals
Math Review of Simplifying Radicals 150 150 Deborah

Overview: Before many operations can be performed with expressions involving radicals, the radicals must be simplified.  This ensures that they are factored so that there are no perfect square factors…

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Math Review of Roots of Numbers
Math Review of Roots of Numbers 150 150 Deborah

Overview The root of any number is specified by the radical symbol (√).  It is the inverse operation to raising a number by an exponent.  Roots may be rational numbers…

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Math Introduction to Probability
Math Introduction to Probability 150 150 Deborah

Overview: The probability of an event is determined by how likely that event is to happen.  If an event is impossible, it has a probability of 0.  If an event…

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Using Two Variables to Solve Problems
Using Two Variables to Solve Problems 150 150 Deborah

Overview: Many equations use more than one variable, because there is more than one unknown in the sentence.  Many times, one variable is expressed in terms of the other variable. …

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Solving Quadratic Equations
Solving Quadratic Equations 150 150 Deborah

Overview: Quadratic equations are very common in algebra.  They have the form y = ax2 + bx + c, where a is not equal to 0.  The graph of a…

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Math Review of the Triangle Inequality
Math Review of the Triangle Inequality 150 150 Deborah

Overview: Triangles have many different properties.  For example, the sum of all three angles is always equal to 180o. The area of a triangle is equal to 1/2 times the…

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Solving Equations with the Variable on Both Sides
Solving Equations with the Variable on Both Sides 150 150 Deborah

Overview: To solve equations with the variable on both sides, move all variables to one side or another.  This can be accomplished by using the addition or subtraction principle of…

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More Problem-Solving Strategies: Working Backwards
More Problem-Solving Strategies: Working Backwards 150 150 Deborah

Overview: Working backwards is another way to solve some math problems.  If the result is given at the end of a series, follow each step until the problem is complete. …

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Math Review of Radical Expressions
Math Review of Radical Expressions 150 150 Deborah

Overview Radical expressions involving square roots have many applications in algebra.  If an equation calls for a variable to be squared, its solution will be a square root.  The principal…

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