Bonjour,
(3x - 1)² + 3 (2x + 3)
= 9x² - 6x + 1 + 6x + 9
= 9x² + 10
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Bonjour,
(3x - 1)² + 3 (2x + 3)
= 9x² - 6x + 1 + 6x + 9
= 9x² + 10