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One step you usually want to take is to move any perfect square out of the radical.

Example 1, with numbers: root(12) = root(4x3) = root(4) x root(3) = 2 root(3)

Example 2, with variables: root(y cubed) = root(y squared times y) = root(y squared) times root(y) = y root(y)

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9y ago

What else can I help you with?