College Algebra / Alg 045 · Atom · ~20 seconds
The Product Rule for Simplifying Square Roots
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The product rule for simplifying square roots splits the root of a product into a product of roots: √(ab) = √a · √b for nonnegative a and b.
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√72 = √36 · √2 = 6√2 — the perfect square walks out from under the radical.
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