Question 74525
x^2-6x+9/x^2-9
First factor the numerator and denominator, then cancel any factor that matches top to bottom.
{{{((x-3)(x-3))/((x+3)(x-3))}}}
{{{(cross((x-3))(x-3))/((x+3)*cross((x-3)))}}}
{{{highlight((x-3)/(x+3))}}}
Happy Calculating!!!!