rezamiguel11 rezamiguel11

22-06-2016
Mathematics

contestada

All of the following are equivalent, except _____.
A) (12 + 3)x
B) (12 + 3x)x
C) 15x
D) 12x + 3x

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Seanellem Seanellem

22-06-2016

The correct answer would be b) (12 + 3x)x

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bananasinpjs bananasinpjs

22-06-2016

All are equivalent except for b - because 12 * x = 12x but 3x * x becomes 3x^2.

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