Respuesta:
8 + 2x²
Identidades de Legendre:
(a+b)² + (a - b)² = 2(a² + b²)
(2+x)²+(2-x)²
2(2²+x²)
2(4 + x²)
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Respuesta:
8 + 2x²
Identidades de Legendre:
(a+b)² + (a - b)² = 2(a² + b²)
(2+x)²+(2-x)²
2(2²+x²)
2(4 + x²)
8 + 2x²