m2 − m2 − 7m2m^2\:-\:m^2\:-\:7m^2m2−m2−7m2
−25a12b9−5a6b3\frac{-25a^{12}b^{9}}{-5a^{6}b^{3}}−5a6b3−25a12b9
3x2−34x+70>03x^2-34x+70>03x2−34x+70>0
x2−40x=0x^2-40x=0x2−40x=0
x2+2x+2xx^2+2x+2xx2+2x+2x
limx→0(x−1x)\lim_{x\to0}\left(x^{-\frac{1}{x}}\right)x→0lim(x−x1)
11−211−2\frac{11^{-2}}{11^{-2}}11−211−2
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