Respuesta:
a + b = 7
ab = 4
Calcular: a² + b²
(a + b)² = 7²
a² + 2ab + b² = 49
a² + b² + 2(4) = 49
a² + b² = 41
Explicación paso a paso:
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Respuesta:
a + b = 7
ab = 4
Calcular: a² + b²
a + b = 7
(a + b)² = 7²
a² + 2ab + b² = 49
a² + b² + 2(4) = 49
a² + b² = 41
Explicación paso a paso: