SOLUTION: question one: x+1 over 7x minus x-3 over x^3 question two: x+1 over 4x+8 minus 2x^2 over 8x^2-32

Algebra ->  Rational-functions -> SOLUTION: question one: x+1 over 7x minus x-3 over x^3 question two: x+1 over 4x+8 minus 2x^2 over 8x^2-32      Log On


   

Question 314155: question one: x+1 over 7x minus x-3 over x^3

question two: x+1 over 4x+8 minus 2x^2 over 8x^2-32
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the common denominator, 7x%5E3.


+%28x%2B1%29%2F%287x%29-%28x-3%29%2F%28x%5E3%29=+%28x%5E3%2Bx%5E2-7x%2B21%29%2F%287x%5E3%29
.
.
.


Use the common denominator, %28x%2B2%29%28x-2%29



%28x%2B1%29%2F%284x%2B8%29-2x%5E2%2F%288x%5E2-32%29=%28-x-2%29%2F%284%28x%2B2%29%28x-2%29%29

%28x%2B1%29%2F%284x%2B8%29-2x%5E2%2F%288x%5E2-32%29=-1%2F%284%28x-2%29%29