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

asked Nov 16, 2020 9.6k views

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1 vote

Answer:

B.)7√5

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

Alexey Popkov answered Nov 21, 2020

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