2x-6y=12
x+3y=5
2(5 $\sqrt{2}$ )
28148=(204.2x)^2-(23691.8/x^2)
$log_{32}$ 2
log32 2
log32 2=a/b
(8x^6y^-15z^3)^(2/3) *(49x^-2y^8x^2)^(-1/2)
tan(42)*35
dx ^{3/4}=
100/4+6*2+7=79
