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Wittaler [7]
3 years ago
12

First year of high school heh need a little help​

Mathematics
1 answer:
Luba_88 [7]3 years ago
7 0

Answer:

(12 + 3x)x

Step-by-step 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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