x2−2x+7x^2-2x+7x2−2x+7
25a2−1215a−11\frac{25a^2-121}{5a-11}5a−1125a2−121
(20x−10y+5z)2\left(20x-10y+5z\right)^2(20x−10y+5z)2
4m3y+5x2my−7x2m2y24m^3y+5x^2my-7x^2m^2y^24m3y+5x2my−7x2m2y2
(xn+1−3n−2)2\left(x^{n+1}-3^{n-2}\right)^2(xn+1−3n−2)2
3x2−5x+1⋅(−x3)+2x2−33x^2-5x+1\cdot\left(-x^3\right)+2x^2-33x2−5x+1⋅(−x3)+2x2−3
limx→−∞(4x2+2)x+1\lim_{x\to-\infty}\frac{\left(\sqrt{4x^2+2}\right)}{x+1}x→−∞limx+1(4x2+2)
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