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a) x . y = 360
x + y = -66 -----> y= -66 - x
x . (-66 - x) = 360
-66x - - 360 = 0
(Uso fórmula resolvente)
x1 = -60 y1= -126
x2= -6 y2= -72
b) x . y = 360
x - y = -18 ------> x = -18 + y
(-18 + y) . y = 360
-18y + - 360 = 0
(Uso resolvente)
y1 = 30 x1= 12
y2= -12 x2= -30
c) x . y = 360
x - y = 37 ------> x = 37 + y
(37 + y) . y = 360
37y + - 360 = 0
y1=y2= -18,5
x1=x2= 18,5
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Hola!
a) x . y = 360
x + y = -66 -----> y= -66 - x
x . (-66 - x) = 360
-66x - - 360 = 0
(Uso fórmula resolvente)
x1 = -60 y1= -126
x2= -6 y2= -72
b) x . y = 360
x - y = -18 ------> x = -18 + y
(-18 + y) . y = 360
-18y + - 360 = 0
(Uso resolvente)
y1 = 30 x1= 12
y2= -12 x2= -30
c) x . y = 360
x - y = 37 ------> x = 37 + y
(37 + y) . y = 360
37y + - 360 = 0
(Uso resolvente)
y1=y2= -18,5
x1=x2= 18,5