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Simplifying
Multiply and simplify a product of two square roots that each have numerical coefficients and variable radicands, producing a result with a large coefficient.
Multiply the coefficients together and multiply the radicands together:
The coefficients give . The radicands give (since and ). Now simplify the radical by extracting perfect square factors. The largest perfect square dividing is , and is a perfect square:
The simplified result is . This example combines three multiplicative components — the product of the outside coefficients (), the integer extracted from the simplified radical (), and the remaining radical () — which are all multiplied together to form the final answer.
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Ch.9 Roots and Radicals - Elementary Algebra @ OpenStax
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Learn After
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