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laila [671]
3 years ago
7

The sum of two trinomials is 7x2 - 5x + 4. If one of the trinomials is 3x2 + 2x - 1, then what is the other trinomial?

Mathematics
1 answer:
Flura [38]3 years ago
7 0

Answer:   4x^{2} - 7x + 5

Step-by-step explanation:

Let y be the number

3x^{2} +2x - 1 + y = 7x^{2} - 5x + 4

                       y = 7x^{2} - 5x + 4 - 3x^{2} - 2x + 1

                       y = 4x^{2} - 7x + 5

                     

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