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Mathematics, 18.11.2020 20:30 kony345p

What is the sum of r? - 3x + 7 and 3x2 + 5x - 9? ~ 472 – 8x + 2
4x2 + 2x + 16
C 42 - 2x - 2
D 4r + 2x - 2

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What is the sum of r? - 3x + 7 and 3x2 + 5x - 9? ~ 472 – 8x + 2
4x2 + 2x + 16
C 42 - 2x...
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