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11+4√7
respuesta es la C
Aplicas productos notables.
(a + b)² = a² + 2ab +b²
(2 + √7)² =
2² + 2(2)(√7) + (√7)² =
4 + 4√7 + 7 =
4 +7 + 4√7 =
11 + 4√7
Respuesta.
11 + 4√7 ( c . Ninguna)