(3x + 2)² - (3x - 1)² = (3x + 2 - 3x + 1)(3x + 2 + 3x - 1) = 3 * (6x + 1) =
= 18x + 3
Ответ:
3(6x+1)
Объяснение:
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(3x + 2)² - (3x - 1)² = (3x + 2 - 3x + 1)(3x + 2 + 3x - 1) = 3 * (6x + 1) =
= 18x + 3
Verified answer
Ответ:
3(6x+1)
Объяснение: