Question

Find the value of 5√7 + 7√7
please tell me​

Answer 1

Answer:

(5+√7) (5-√7) → 5(5-√7) +√7(5-√7) →25-5√7+5√7-7→25-7→ 18

Answer 2

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Find the value of 5√7 + 7√7.

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$5 \sqrt{7} + 7 \sqrt{7} \\ = 12 \sqrt{7} (answer)$

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