3x4−3x2+2xx−4\frac{3x^4-3x^2+2x}{x-4}x−43x4−3x2+2x
a2+1a2+4(a+1a)+6\sqrt{a^2+\frac{1}{a^2}+4\left(a+\frac{1}{a}\right)+6}a2+a21+4(a+a1)+6
1.500 − 2.100 1.500\:-\:2.100\:1.500−2.100
3−22−1⋅33-2^2-1\cdot33−22−1⋅3
x2+19≥9x−x2x^2+19\ge9x-x^2x2+19≥9x−x2
5x2+40x+155x^2+40x+155x2+40x+15
−(54)a6b4⋅m−2m−5-\left(\frac{5}{4}\right)a^6b^4\cdot m^{-2}m^{-5}−(45)a6b4⋅m−2m−5
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