Question 72135
{{{(2x^2-28x+98)/(x^2-14x+49)}}}
First of all factor out the 2 in the numerator;
{{{2(x^2-14x+49)/(x^2-14x+49)}}}
Now factor numerator and denominator;
{{{2(x-7)(x-7)/(x-7)(x-7)}}}
cancel out in numerator and denominator:
{{{2highlight(x-7)highlight(x-7)/highlight(x-7)highlight(x-7)}}}
{{{2cross(x-7)cross(x-7)/cross(x-7)cross(x-7)}}}
{{{2/1}}}=2
:)