Question

Urgente ! Simplifique as frações abaixo: a) x³+2x²/x+2= b)2006²-2005²/2006+2005 = c) x²+5x+6/x²+7x+10= d) x²+5x+6/x²+7x+10=

Answer 1

a) x^2(x+2)/(x+2)=x^2.
b)(2006+2005)(2006-2005)/(2006+2005)=(2006-2005)=1
c)[(x+2)(x+3)]/[(x+2)(x+5)]=(x+3)/(x+5)
d)[(x+2)(x+3)]/[(x+2)(x+5)]=(x+3)/(x+5)

Espero ter ajudado!