Question

4√81-8×3√216+15×5√32+√225

Answer 1

Hola Mate!!

Your answer :-

$= > 4 \sqrt{81} - 8 \times 3 \sqrt{216} + 15 \times 5 \sqrt{32} + \sqrt{225} \\ \\ = > 4 \sqrt{9 \times 9} - 24 \sqrt{6 \times 6 \times 6} + 75\sqrt{2 \times 2 \times 2 \times 2 \times 2 }+ \sqrt{15 \times 15} \\ \\ = > 4 \times 9 - 24 \times 6 \sqrt{6} + 75 \times 2 \sqrt{2} + 15 \\ \\ = > 36 - 144 \sqrt{6} + 150 \sqrt{2} + 15 \\ \\ = > 36 + 15 - 144 \sqrt{6} + 150 \sqrt{2} \\ \\ = > 51 - 144 \sqrt{6} + 150 \sqrt{2}$

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Answer 2

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Plz see the attachment ✔✅

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