odoboy1993 odoboy1993

20-02-2021
Mathematics

contestada

if (a+b)^2=10, if ab=-2 calculate a^2+b^2

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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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