(1+tan(a))(1−tan(a))\left(1+\tan\left(a\right)\right)\left(1-\tan\left(a\right)\right)(1+tan(a))(1−tan(a))
1x4+2x2+1\frac{1}{x^4+2x^2+1}x4+2x2+11
(x+1)2+y(x+1)\left(x+1\right)^2+y\left(x+1\right)(x+1)2+y(x+1)
(x+1)2+(y−2)2=9\left(x+1\right)^2+\left(y-2\right)^2=9(x+1)2+(y−2)2=9
(25m+13n2)2\left(\frac{2}{5}m+\frac{1}{3}n^2\right)^2(52m+31n2)2
−6a2b3−2ab\frac{-6a^2b^3}{-2ab}−2ab−6a2b3
x2−15x+56x^2-15x+56x2−15x+56
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