-5+3i-4-2i
(81x^-4 /16y^4)^-3/4
$$\int(ln(x)/x) dx$$
4 painters used 6 days to paint a house. how long will it take 9 painters working at the same house?
2*-3/8-3
6x+3y=9
$27dividedby3$
how to sovle a+b/c +c+d/a
6diveidedby6
Find the distance between point A( 1 ,2 ,5 ) and B(3,2,1,) also find their midpoint
