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Aplicas productos notables.
(a - b)² = a² - 2ab + b²
(4a² - 3b³)²
(4a²)² - 2(4a²)(3b³) + (3b³)² =
4²a⁴ - 24a²b³ + 3²b⁶
16a⁴ - 24a²b³ +9b⁶
Respuesta.
16a⁴ - 24a²b³ + 9b⁶
(4a2 - 3b3)2
*Simplificamos la suma 4a2-3b3
(8a - 9b) × 2
*Expandimos el término
2 × 8a - 2 × 9b
*Simplificamos la suma 28a - 29b
= 16a - 18b
Mucha suerte!