Respuestas

2013-06-07T00:42:56+02:00
₍x+5₎₍2x-3₎-8x ₌₍x-3₎²

₍x+5₎₍2x-3₎-8x = X²+2(X)(3)-9

2x²-3x+10x-15=x²+6x-9

2x² - 3x + 10x - 15 -x² - 6x + 9 = 0


x²-x-6=0


(x-3)(x+2) =0
x-3= 0        x+2= 0
x = 3           x= -2