How do you solve #(2x)/(x-2)+(x^2+3x)/((x+1)(x-2))=2/((x+1)(x-2))#?

Question

1733 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-06-04T11:34:39

x=#1/3# or x=-2

Multiply #(2x)/(x-2)# by x+1 so that the fractions are all over a common denominator

#[2x(x+1)+x^2+3x]/[(x+1)(x-2)]=2/[(x+1)(x-2)]#

#[2x^2+2x+x^2+3x]/[(x+1)(x-2)]=2/[(x+1)(x-2)]#

#[3x^2+5x]/[(x+1)(x-2)]=2/[(x+1)(x-2)]#

mutiply throughout by (x+1)(x-2) to remove the fractions

#3x^2+5x=2#

#3x^2+5x-2=0#

(3x-1)(x+2)=0

3x-1=0 or x+2=0

x=#1/3# or x=-2