Comparați vitezele micșorării ordonate a electronilor in două conductoare de oțel dacă diametrul conductorului al doilea este de 3 ori mai mare decât a primului la aceeași intensitate a curentului electric.
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Ответ:
The answer to your question is the last option (-2x² - 3)(4x + 1)
Step-by-step explanation:
Expression - 8x³ - 2x² - 12x - 3
Order the terms - 8x³ - 12x - 2x² - 3
Process
1.- Factor the first two terms and the last two terms
(-8x³ - 12x²) + (-2x - 3)
Common factor of the first group -4x
Common factor of the second group -1
2.- Factor each group
First group -4x(2x² + 3)
Second group -1 (2x² + 3)
3.- Factor again by common factor
-4x(2x² + 3) - 1(2x² + 3)
(2x² + 3)(-4x - 1) or -(2x² + 3)(4x + 1) or (-2x² - 3)(4x + 1)