First year of high school heh need a little help

asked Aug 20, 2021 40.0k views

5 votes

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2 votes

Answer:

(12 + 3x)x

Explanation:

(12 + 3)x = 12x + 3x = 15x

(12 + 3x)x = 12x + 3x²

15x

12x + 3x = 15x

They all equal 15x except for (12 + 3x)x

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