2 years ago

Freeeeeee points! :)

Mathematics

2 answers:

viva [34]2 years ago

8 0

Answer:

Step-by-step explanation:

Yuliya22 [10]2 years ago

4 0

Thanks! I really appreciate it :)

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shutvik [7]

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Step-by-step explanation:

as lines are parallel.

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3 years ago

Simplify the radical 7√7-2√28

Umnica [9.8K]

ANSWER

$3 \sqrt{7}$

EXPLANATION

The given radical is

$7 \sqrt{7} - 2 \sqrt{28}$

Remove the perfect square from the second radical.

$= 7 \sqrt{7} - 2 \sqrt{4 \times 7}$

$= 7 \sqrt{7} - 2 \sqrt{4} \times \sqrt{7}$

$= 7 \sqrt{7} - 2 \times 2 \times \sqrt{7}$

$= 7 \sqrt{7} - 4 \sqrt{7}$

Subtract the like radicals

$= 3 \sqrt{7}$

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2 years ago

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