odoboy1993
odoboy1993
20-02-2021
Mathematics
contestada
if (a+b)^2=10, if ab=-2 calculate a^2+b^2
Respuesta :
Аноним
Аноним
20-02-2021
Answer:
a^2+b^2=(a+b)²-2ab=10-2×-2=10+4=14(here -×-=+)
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