6+56−26\sqrt{6}+5\sqrt{6}-2\sqrt{6}6+56−26
limx→2(2x2−7x−9)\lim_{x\to2}\left(2x^2-7x-9\right)x→2lim(2x2−7x−9)
x21 x y−21x^{21}\:x\:y^{-21}x21xy−21
∫x2−3x+2x(x2+2x+1)dx\int\frac{x^2-3x+2}{x\left(x^2+2x+1\right)}dx∫x(x2+2x+1)x2−3x+2dx
∫(3x+2x3+9x)dx\int\left(\frac{3x+2}{x^3+9x}\right)dx∫(x3+9x3x+2)dx
4+2a2−54+2a^2-54+2a2−5
log11(3b+2)=log11(b2−8)\log_{11}\left(3b+2\right)=\log_{11}\left(b^2-8\right)log11(3b+2)=log11(b2−8)
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