Mathematics: Simplfyabcdsimplifyabcd

Simplfyabcdsimplifyabcd - id4428520, akatherine1738

Ответ:

babas97

14.01.2022

$\large\boxed{C.\ 6\sqrt{30}}\\\boxed{C.\ 4\sqrt7}$

Step-by-step explanation:

$\text{Use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b} \\\\\sqrt{20} \times \sqrt{3} \times \sqrt{18}=\sqrt{20\times3\times18}=\sqrt{4\times5\times3\times3\times6}\\\\=\sqrt4\times\sqrt9\times\sqrt{5\times6}=2\times3\times\sqrt{30}=\boxed{6\sqrt{30}}\\==============================\\\\5 \sqrt{7} + \sqrt{7} - 2 \sqrt{7}=5 \sqrt{7} + 1\sqrt{7} - 2 \sqrt{7}=(5+1-2)\sqrt7=\boxed{4\sqrt7}$

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Ответ:

oof1231

20.01.2020

Mathematics

(2x)2 + (2x + 5)2

Step-by-step explanation:

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Simplfy

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b

c

d

simplify

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b

c

d

Ответ:

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