C^{27\ }\left[Mod\left(55\right)\right]
3*1/2*(-1/5)=
(3 $a^{3}$ ) $^{2}$
√5 (1/2)^(2x-4)=25^(3x)
1/6 + 1 ½
$x^{2}$ + 6x + 9 = 0
4/5*5/4=
12 $x^{8}$- $x^{7}$ +6 $x^{4}$ -$x^{3}$+x-3
-12÷3
1,26601056e+26