\(2\sqrt{5}+3\sqrt{20}\) का सरल रूप क्या है?
What is the simplified form of \(2\sqrt{5}+3\sqrt{20}\)?
Explanation opens after your attempt
B. \(8\sqrt{5}\)
Concept
\(\sqrt{20}=2\sqrt{5}\), so \(2\sqrt{5}+6\sqrt{5}=8\sqrt{5}\). Watch both coefficients and radicals carefully.
Why this answer is correct
The correct answer is B. \(8\sqrt{5}\). \(\sqrt{20}=2\sqrt{5}\), so \(2\sqrt{5}+6\sqrt{5}=8\sqrt{5}\). Watch both coefficients and radicals carefully.
Exam Tip
\(\sqrt{20}=2\sqrt{5}\), इसलिए \(2\sqrt{5}+6\sqrt{5}=8\sqrt{5}\) है। गुणांक और मूल दोनों ध्यान से देखें।
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