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4a²+32ab+64b²
Aplicas productos notables.
(a + b)² = a² + 2ab + b²
(2a + 8b)² =
(2a)² + 2(2a)(8b + (8b)² =
2²a² + 32ab + 8²b² =
4a² + 32ab + 64b²
Respuesta.
4a² + 32ab + 64b²