d-90.9=909.09
(3-f)(7f+5)
$21^{2^4^8}\sqrt{16}$
simplify 3x*5x
\lim_(x->0)[(1)/(x^(5))\int_0^x e^(-t^(2))dt-(1)/(x^(4))+(1)/(3x^(2))]
3(2x-1)-2(x-3) = x-1(5x-3)
3x*5x
-9/10+22/15
$21^{2(^4[^8])}\sqrt{16}$
a 10 = 2
