Question 5068
You forgot to say what todo with this!  Are we factoring the expression???


If so, this is the difference of two squares, as in {{{x^2 - y^2 = (x-y)(x+y) }}}


In the same way,

{{{4x^2- 49y^2 = (2x - 7y)(2x+7y) }}}


R^2 at SCC