Simplify Radicals with Variables of Square and Cube Roots

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Define a radical expression.

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

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What is the square root of a number?

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What is the cube root of a number?

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6.

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x.

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ab.

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What is the process of simplifying radicals?

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The process involves factoring out perfect squares (or cubes) from under the radical sign and simplifying the expression.

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2√5.

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x^2.

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