Question

please tell the answere correctly step by step​

Answer 1

Question:-

→Multiply 11√7 by 5√7

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AnsWer:-

•When Roots(√) of the same number are multiplied, they convert into the Natural Number form•

→ 11√7×5√7

→55×7 [•°•√7×√7=7]

→385

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Answer 2

$11 \sqrt{7} \times \sqrt{7} \\ \\ = > 11 \times ( \sqrt{7} \times \sqrt{7} ) \\ \\ = > 11 \times 7 \\ \\ = > 77$