Divide and simplify x216x9x4x3 Box 1 Enter your answer as an
     Divide and simplify: x^2-16/x^-9/x-4/x-3  Box 1: Enter your answer as an expression. Example: 3x^2+l, x/5, (a+b)/c Be sure your variables match those in the question 
  
  Solution
(x^2 -16)/(x-9) / (x-4)/(x-3)
Numerator :(x^2 -16)/(x^-9) = (x -4)(x +4) /(x-3)(x+3)
Denominator : (x-4)/(x-3)
(x^2 -16)/(x-9) / (x-4)/(x-3) = (x -4)(x +4) / (x-3)(x+3) / ( x-4)/(x-3)
= {( x-4)(x+4)/(x-3)(x+3)} * (x-3)/(x-4)
= (x+4)/(x+3)

