Simplify: fracx2+x−12x2+7x+12\\frac{x^2 + x - 12}{x^2 + 7x + 12}fracx2+x−12x2+7x+12 (assume xneq−3,−4x \\neq -3, -4xneq−3,−4).
fracx−3x+3\\frac{x-3}{x+3}fracx−3x+3
fracx+4x+3\\frac{x+4}{x+3}fracx+4x+3
fracx−3x+4\\frac{x-3}{x+4}fracx−3x+4
fracx+4x−3\\frac{x+4}{x-3}fracx+4x−3