Question 86276
Begin by flipping the {{{(x^2 - 25)/(2x - 10)}}} and make it {{{(2x - 10)/(x^2 - 25)}}}. Then change the division to multiplication. Next, factor the {{{x^2}}} - 2x - 15, the 2x - 10 and the {{{x^2}}} - 25. Cancel out the common factors, either vertically and/or diagonally, then multiply whatever's left over straight across.