Learn Before
Example

Simplifying 8(2−58)\sqrt{8}(2 - 5\sqrt{8}) and 33(−93−63)\sqrt[3]{3}(-\sqrt[3]{9} - \sqrt[3]{6})

To simplify expressions like 8(2−58)\sqrt{8}(2 - 5\sqrt{8}) and 33(−93−63)\sqrt[3]{3}(-\sqrt[3]{9} - \sqrt[3]{6}), apply the Distributive Property to multiply the terms, then simplify the resulting radicals. For the first expression, distributing yields 28−5642\sqrt{8} - 5\sqrt{64}. Simplifying the perfect square factor from 8\sqrt{8} and evaluating 64\sqrt{64} gives 2(22)−5(8)2(2\sqrt{2}) - 5(8), which simplifies to 42−404\sqrt{2} - 40. For the second expression, distributing yields −273−183- \sqrt[3]{27} - \sqrt[3]{18}. Since 273\sqrt[3]{27} is a perfect cube (33), the expression simplifies to −3−183-3 - \sqrt[3]{18}.

0

1

Updated 2026-06-03

Contributors are:

Who are from:

Tags

OpenStax

Intermediate Algebra @ OpenStax

Ch.8 Roots and Radicals - Intermediate Algebra @ OpenStax

Algebra

Related
Learn After