(x²)²
3x+5 3x+y=+15
1.2 x 2.5
2x + 3y = 5
x - 3y = 4
x + y = -2
(x+2) (x-3) simplify
(xy+2x+y+2)dx+(x^2+2x)dy=0
(xy+x+y+2)dx+(x^2+2x)dy=0
20ka 1percent
