Simplify: frac5x2−55x2+10x+5\\frac{5x^2 - 5}{5x^2 + 10x + 5}frac5x2−55x2+10x+5 (assume xneq−1x \\neq -1xneq−1).
fracx−1x+1\\frac{x-1}{x+1}fracx−1x+1
fracx+1x−1\\frac{x+1}{x-1}fracx+1x−1
fracx−1(x+1)2\\frac{x-1}{(x+1)^2}fracx−1(x+1)2
frac5(x−1)5(x+1)\\frac{5(x-1)}{5(x+1)}frac5(x−1)5(x+1)