Example

Simplifying (62)(310)(6\sqrt{2})(3\sqrt{10})

Multiply and simplify a product of two square roots that each have coefficients, where the result requires extracting a perfect-square factor.

(62)(310)(6\sqrt{2})(3\sqrt{10})

Multiply the coefficients together and multiply the radicands together using the Product Property:

(62)(310)=1820(6\sqrt{2})(3\sqrt{10}) = 18\sqrt{20}

The radicand 2020 is not a perfect square, so extract its largest perfect-square factor: 20=4520 = 4 \cdot 5.

1820=1845=1825=36518\sqrt{20} = 18 \cdot \sqrt{4} \cdot \sqrt{5} = 18 \cdot 2 \cdot \sqrt{5} = 36\sqrt{5}

The simplified result is 36536\sqrt{5}. This example shows that after multiplying the coefficients and radicands, the new coefficient (1818) and the integer extracted from the simplified radical (22) are multiplied together to form the final coefficient (3636) in front of the remaining radical.

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Updated 2026-04-21

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