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13-06-2019
Mathematics

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Combine the following expressions 2√5+ 5√5. A.)35 B.)7√5 C.)7√10

Respuesta :

13-06-2019

Answer:

B.)7√5

Step-by-step explanation:

2√5+ 5√5 = 7√5

we simply let √5 = x

therefore;

2√5+ 5√5 = 2x + 5x

2x + 5x = 7x

but x = √5

2√5+ 5√5 = 7√5

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