Better Students Ask More Questions.
simplify: 3/x + 2x/(x-1) + x/5
1 Answer | add yours
High School Teacher
(3/x) + (2x/(x-1)) + (x/5)
First we need to have a coomon denomenator which si :
x(x-1)*5 = 5x(x-1)
==> [3(5(x-1) + 2x(5x) + x(x(x-1)]/ (5x)(x-1)
= [15x -15 + 10x^2 + x^3 - x^2]/(5x)(x-1)
= [x^3 + 9x^2 + 15 x -15]/(5x)(x-1)
Posted by hala718 on July 28, 2010 at 7:47 AM (Answer #1)
Join to answer this question
Join a community of thousands of dedicated teachers and students.