3 years ago

PLEASE HELP 20 POINTS

1 answer:

8 0

Step-by-step explanation:

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

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