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* x
* x+7
planteando:
(x)(x+7) = 450
x²+7x = 450
x²+7x-450=0
(x+25)(x-18) =0 <=factorizando
x+25=0 | x-18=0
x= -25. | x= 18
reemplazando:
* x = 18
* x +7 = 18+7 = 25
*los números positivos serian 18 y 25 :)