Question 78330
<pre>
Please help me solve this:

{{{(2x^2-2)/(6x+6)}}} times {{{(6x^2+18x)/(x^2+2x-3)}}}



  2x^2 - 2                6x^2 + 18x 
_____________     *     _______________
  6x + 6                 x^2 + 2x - 3


Factor both numerators and denominators if possible

   2(x+1)(x-1)              6x(x+3)
________________   *     ______________
  6 (x+1)                  (x-1)(x+3)

Divide common factors

   2 {{{cross ((x+1)(x-1))}}}              {{{cross (6)}}}x {{{cross(x+3)}}}
________________   *     ______________
  {{{cross (6 (x+1))}}}                  {{{cross ((x-1)(x+3))}}}




         {{{highlight (2x)}}}