Respuestas

2012-11-13T22:17:46+01:00

x+1         4x+1

-----  =   --------

x-3          x+2

 

(x+1)(x+2)=(4x+1)(x-3)

 

x2+3x+2=4x2-11x-3

3x2-14x-5=0

(3x-15)(3x+1)/3

(x-5)(3x+1)=0

 

X-5=0

x=5

 

3x+1=0

x=-1/3

 

2012-11-13T22:19:51+01:00

(X+1)(X+2) = (4X+1)(X-3)

 x² + 2X + X + 2 = 4x² - 12X - 3 + X

x² + 3X + 2 = 4x² - 11X - 3

3x² - 14x - 1 = 0