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5 February, 13:00

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

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  1. 5 February, 13:03
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    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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