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PLEASE HELP 20 POINTS

PLEASE HELP 20 POINTS-example-1
User CountCet
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Explanation:


- √(5 ) - 3 √(5) \\ = ( - √(5)) + ( - 3 √(5) ) \\ = ( - √(5) ) - (3 √(5) ) \\ = - 4 √(5)

User Sethbro
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