bonjour
3 x + 20 x - 10 x² - 2 x² + 6 x - 10
= - 12 x² + 29 x - 10
8 + 2 x - 6 x² + 8 x + 15 x - 5 x²
= - 11 x² + 25 x + 8
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bonjour
3 x + 20 x - 10 x² - 2 x² + 6 x - 10
= - 12 x² + 29 x - 10
8 + 2 x - 6 x² + 8 x + 15 x - 5 x²
= - 11 x² + 25 x + 8