Simplify Radicals

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What is a radical?

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A radical is an expression that includes a root, such as a square root (√) or cube root (∛).

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What does it mean to simplify a radical?

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To simplify a radical means to express it in its simplest form, removing any perfect square factors from under the radical sign.

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What is the square root of a negative number?

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What is the principal square root?

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The principal square root of a number is the non-negative root. For example, the principal square root of 9 is 3.

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What is the product property of square roots?

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What is the sum property of square roots?

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