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Published byBarrie Ira Webster Modified over 9 years ago

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Exponents and Powers Power – the result of raising a base to an exponent. Ex. 32 Base – the number being raised to the exponent. Ex is the base Exponent – the number the base is being raised to. Ex is the exponent

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Example Problems Simplify the following expressions. Write your answer in expanded and standard notations. 33 23 32 52 210

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**Exponents and Grouping Symbols**

To evaluate powers involving grouping symbols: (ab)2 = (ab)(ab) = a x a x b x b = a2b2 The power is applied to each value within the parenthesis. (This applies only when there is one term in parenthesis raised to a power)

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Example Problems (ab)2 (7a2)3 (23b2c)3

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Square Roots Square root – the square root of a number x is a number y which when multiplied by itself (y2) is equal to x. Perfect square – a number whose square root is a whole number. Example 9 = 3 x 3 Square root symbol (Radical Symbol)- the symbol used to denote square root. Number that I want the square root of Square root symbol

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Example Problems Evaluate each square root. You may use a calculator.

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