Question 86319
{{{x^2/(x+10)}}} + {{{(9x-10)/(x+10)}}}
The denominators are the same, so combine the numerators:
{{{(x^2 + 9x - 10)/(x+10)}}}
Factor the numerator:
{{{((x + 10)(x - 1))/(x + 10)}}}
Cancel the (x + 10)s:
{{{(x - 1)/1}}} = x - 1