(x2+1)(x2−2x−1)\left(x^2+1\right)\left(x^2-2x-1\right)(x2+1)(x2−2x−1)
(3x−8)(5x+7)\left(3x-8\right)\left(5x+7\right)(3x−8)(5x+7)
49m2−81n249m^2-81n^249m2−81n2
30− −10−2+130-\:-10-2+130−−10−2+1
(xx2−x−6)\left(\frac{x}{x^2-x-6}\right)(x2−x−6x)
limx→0(cos(x))1x2\lim_{x\to0}\left(\cos\left(x\right)\right)\frac{1}{x}^2x→0lim(cos(x))x12
∫x−1x4+10x2+9dx\int\frac{x-1}{x^4+10x^2+9}dx∫x4+10x2+9x−1dx
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