Radicals Review

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What is a radical?

Back

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

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What is the square root of a number?

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The square root of a number x is a value that, when multiplied by itself, gives x. It is denoted as √x.

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How do you simplify a radical expression?

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To simplify a radical expression, factor the number under the radical into its prime factors and look for pairs of factors.

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What is a perfect square?

Back

A perfect square is an integer that is the square of another integer. For example, 1, 4, 9, 16, and 25 are perfect squares.

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What is the square root of 50?

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The square root of 50 can be simplified to 5√2.

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How do you multiply two radical expressions?

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To multiply two radical expressions, multiply the numbers under the radicals and then simplify if possible.

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How do you identify a non-perfect square?

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A non-perfect square is a number that cannot be expressed as the square of an integer. For example, 27 is not a perfect square.

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