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Tatiana [17]
3 years ago
6

PLEASE HELP ILL GIVE BRAINLIEST AND EXPLAIN THE ANSWER TOO PLEASE

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
5 0

Answer:

Step-by-step explanation:

3x² + 7x + 3 + (5x² + 12x) = 3x² + 7x + 3 + 5x² + 12x

           = 8x² + 19x + 3

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