alleryStart learning →Two radicals that look unlike but simplify to the same radicand can then be:
ANever combined
BAdded or subtracted
CMultiplied together
DDivided out only
Answer & Solution
Correct answer: B. Added or subtracted
1. Simplification can reveal a hidden match.
2. Adding or subtracting square roots requires like radicals.
3. Sometimes roots do not appear to have like radicals at first.
4. We find like radicals after simplifying the square roots.
5. Once they match, the terms can be added or subtracted.
_Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 9 'Roots and Radicals', sections 9.1-9.8_
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