brianbelen061ovxvuu brianbelen061ovxvuu

24-10-2017
Mathematics

contestada

If x^2+y^2=73 and xy=24, what is the value of (x+y)^2? And Why?

Respuesta :

dannielle dannielle

05-11-2017

(x+y)^2=x^2+y^2+2xy=73+2*24=73+48=121

⇒ (x+y)^2=121

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