4x^2+12x+9-2x^2-7x-15

1 answer:

5 0

4x^2 + 12x + 9 - 2x^2 - 7x - 15

4x^2 - 2x^2 = 2x^2
12x - 7x = 5x
9 - 15 = -6

2x^2 + 5x - 6

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Nimfa-mama [501]

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kiruha [24]

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