Question 1152130

Simplify:  {{{ ((U+W)^2 -V^2) / ((V+W)^2-U^2) }}}...........use the rule {{{a^2-b^2=(a-b)(a+b)}}}


{{{ (((U+W) -V)((U+W) +V)) / (((V+W)-U)((V+W)+U)) }}}


{{{ ((U+W -V)(U+W +V)) / ((V+W-U)(V+W+U)) }}}


{{{ ((U+W -V)cross((U+W +V))) / ((V+W-U)cross((V+W+U))) }}}


{{{ (U+W -V) / (V+W-U) }}}