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2 votes
All of the following are equivalent, except _____.

(12 + 3)x
12x + 3x
(12 + 3x)x
15x
HELPPPPP PLEASE

User Flinkman
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1 Answer

4 votes
(12 + 3x)x

Every answer, when distributed and added, comes out to be 15x. However, (12 + 3x)x, when distributed comes out to 12x + 3x^2 (3x squared,) so this means it is not equivalent to the other answer choices.
User Maggie Ying
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8.1k points