16m2−9n216m^2-9n^216m2−9n2
(x2 −12x)2\left(x^{2\:-\frac{1}{2}}x\right)^2(x2−21x)2
40x3+18x2+2x5x+1\frac{40x^3+18x^2+2x}{5x+1}5x+140x3+18x2+2x
y4+182<179\frac{y}{4}+182<1794y+182<179
41⋅16\frac{4}{1}\cdot1614⋅16
81−x123−x2\frac{81-x^{12}}{3-x^2}3−x281−x12
(c11d5)9\left(c^{11}d^5\right)^9(c11d5)9
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