differentiate
f(x)=5x-1
426=g-532
9^3/2
260000*$X^{3}$ -4*$X^{2}$ +8*$X^{1}$ -4=0
p/3=-15
(n+5)(n+6)
factorize 5w-10
5w-10
6+h=-11
0.0=x/99
