- 21x + 36x² = ?Proszę, bo nie jestem pewna czy dobrze mam. Ile to jest?
-21x + 36x² = 3x ( -7 + 12x) = 3x (12x-7)
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-21x + 36x² = 3x ( -7 + 12x) = 3x (12x-7)