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Fittoniya [83]
3 years ago
7

Add (3x4 − 2x3 + 1) + (12x4 + x2 − 11).

Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0
Theres a plus and multiplication sign if its plus then the answer is 9 if its multiplication the answer is 19

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Answer:

The second choice is the correct one.

Step-by-step explanation:

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Now 4x^2 - 9 is the differencr of 2 squares:

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