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Katen [24]
3 years ago
15

Plzzzz help me ppl maths

Mathematics
1 answer:
erica [24]3 years ago
4 0

(m + 7)(m + 3) \\ m(m + 3) + 7(m + 3) \\ m {}^{2}  + 3m + 7m + 21 \\ m {}^{2}  + 10m + 21

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