factorize x^2+12x+36
log $_{5}$ (-2x+10)=log $_5$(7-5x)
(( $\frac{\2}{\3}$ ) $a^{-1}$ - $\frac{\3}{\4}$ ) $a^{-1}$
((2/3) $a^{-1}$ -3/4) $a^{-1}$
[(6*9.81*sin37° + 11*9.81*sin60°) - 0.25*9.81*(6*cos37° + 11*cos60°)] / (6+11)
(3 $\sqrt{x}$) $^{2}$ + (3 $\sqrt{x}$) - 20
8638676.1081
8040807.0269
1816328.1350
2426800.812
16679483÷2162
21444785.538
18715712700
10154841624
43241076
77.34192
...
6,67*10^-11*1020/ (4*10^6)^2
q^2+0.5q-0.0225=0
