$32-7-5+20-30+6+14-7$

$\left(\frac{1}{2}x^4+\frac{2}{6}x^3-\frac{4}{2}x^2+\frac{3}{8}x+0\right)+\left(-0x^4-\frac{2}{3}x^3-\frac{5}{3}x^2+\frac{1}{3}x-\frac{7}{3}\right)$

$5-3+4-1+2$

$\left(xy-3x+y-3\right)dx-\left(xy-x-y+1\right)dy=0$

$9\left(3\right)\:+\:4\left(3\right)^2\:-2\:+\:4$

$\frac{1}{2}s-4+\frac{3}{4}s+\frac{1}{8}-s^3$

$4356,763\cdot934,5$