Respuestas

2012-10-18T18:21:00+02:00

A=X"2-2X-X+2

A=X*2-3X+2=

B=(X+1)(X+2)

B=X*2+2X+X+2

B=X*2+3X+2

 

B.A=X-5X*2+4

 

2012-10-18T18:22:04+02:00

A= (x-1)(x-2) B=(x+1)(x+2)    a*b=[(x-1)(x-2)][(x+1)(x+2)]   a*b=[x"-3x+2][x"+3x+2]

 

a*b=x""-11x"+4