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Mathematics

1 answer:

topjm [15]3 years ago

6 0

Answer:

The answer is option 3.

Step-by-step explanation:

The steps are :

$3 \sqrt{2} (5 \sqrt{6} - 7 \sqrt{3})$

$= (3 \sqrt{2} )(5 \sqrt{6} ) - (3 \sqrt{2} )(7 \sqrt{3} )$

$= 15 \sqrt{12} - 21 \sqrt{6}$

$= 15 \sqrt{4 \times 3} - 21 \sqrt{6}$

$= 15(2) \sqrt{3} - 21 \sqrt{6}$

$= 30 \sqrt{3} - 21 \sqrt{6}$

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