Odpowiedź:
2a (3a - 2) - 5 (4 +3a)=6 - 19a - 20
6 * - 19 * -2 - 20 = 6 + 4 - 19 - 2 - 20 = -31
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Odpowiedź:
2a (3a - 2) - 5 (4 +3a)=6 - 19a - 20
6 * - 19 * -2 - 20 = 6 + 4 - 19 - 2 - 20 = -31