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lyudmila [28]
3 years ago
5

(x2 + 10x + 21) - (x + 7)

Mathematics
1 answer:
rusak2 [61]3 years ago
3 0

Answer:

11x+14

Step-by-step explanation:

(2x+10x+21)-x-7 = 12x+21-x-7 = 11x+14

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