katpruitt
katpruitt
06-11-2016
SAT
contestada
can anyone solve this for me
Respuesta :
anouar
anouar
06-11-2016
(x+y)^2=56
x^2+2xy+y^2=56. we know that xy=12
so 2(xy)=24
x^2+24+y^2=56
x^2+y^2=56-24
x^2+y^2=32. <-------------
Answer Link
fuyrci
fuyrci
07-11-2016
32 should be the answer
Answer Link
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