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17-05-2019
Mathematics

contestada

Simplify: a + 2a + 3a + 4a

A)
9a

B)
10a4

C)
9a4

D)
10a

Respuesta :

Аноним Аноним

17-05-2019

You just need to factor a to get

[tex]a(1+2+3+4) = 10a[/tex]

Answer Link

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