SwegNShook
SwegNShook
18-07-2019
Mathematics
contestada
If x + y = 12 and x - y = 3, then
x2 - y2 =
Respuesta :
konrad509
konrad509
18-07-2019
[tex]x^2-y^2=(x-y)(x+y)\\\\x^2-y^2=3\cdot12=36[/tex]
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