Respuestas

2012-06-08T01:14:31+02:00

x=3y                                   x^{2}-y^{2}=1800

                                               (3y)^{2}-y^{2}=1800

                                                         y^{2}=225

                                                            y=15

                                                              x=45

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  • Usuario de Brainly
2012-06-08T01:51:50+02:00

Hola, miremos:

 

Sea X = El primer numero

Sea 3x = El segundo numero

 

(3x)^2 - x^2 = 1800

9x^2 - x^2 = 1800

8x^2 = 1800

X^2 = 1800/8

X^2 = 225

X = Raiz Cuadrada (225)

X = 15...Numero buscado

 

Espero haberte podido ayudar

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