Respuesta:
43
Explicación paso a paso:
a + b = 7
ab = 3
(a + b)² = a² + 2ab + b²
=> 7² = a² + 2·3 + b²
=> a² + b² = 49 - 6
= 43
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Verified answer
Respuesta:
43
Explicación paso a paso:
a + b = 7
ab = 3
(a + b)² = a² + 2ab + b²
=> 7² = a² + 2·3 + b²
=> a² + b² = 49 - 6
= 43