2 years ago

Which names the figure correctly?

Mathematics

1 answer:

mart [117]2 years ago

4 0

Answer:

Step-by-step explanation:

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The simplified form is,

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Step-by-step explanation:

The given expression is,

$=2\sqrt{20}-3\sqrt{7}+2\sqrt{5}+4\sqrt{63}$

$=2\sqrt{4\times 5}-3\sqrt{7}+2\sqrt{5}+4\sqrt{9\times 7}$

$=2(\sqrt{4}\times \sqrt{5})-3\sqrt{7}+2\sqrt{5}+4(\sqrt{9}\times \sqrt{7})$

$=2(2\times \sqrt{5})-3\sqrt{7}+2\sqrt{5}+4(3\times \sqrt{7})$

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$=4\sqrt{5}+2\sqrt{5}+12\sqrt{7}-3\sqrt{7}$

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